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119-526: The Army had previously been using the .38 Long Colt, and the cartridge's relatively poor ballistics were highlighted during the Philippine–American War of 1899–1902, when reports from U.S. Army officers were received regarding the .38 bullet's inability to stop charges of frenzied Moro juramentados in the Moro Rebellion , even at extremely close ranges. A typical instance occurred in 1905 and

238-567: A hollow point deforming on impact while the base opened to seal the round in the barrel. It was introduced in 1898 for use against "savage foes", but fell quickly from favor due to concerns of breaching the Hague Convention's international laws on military ammunition, and was replaced in 1900 by re-issued Mk II pointed-bullet ammunition. Some sporting arms are also referred to as "stoppers" or "stopping rifles". These powerful arms are often used by game hunters (or their guides) for stopping

357-519: A British soldier had to fire four .303 Lee-Metford bullets into a Boxer before he stopped charging. U.S. Army officer Bowman McCalla reported that single rifle shots were not enough: multiple rifle shots were needed to halt a Boxer. Only machine guns were effective in immediately stopping the Boxers. In the Moro Rebellion , Moro Muslim Juramentados in suicide attacks continued to charge against American soldiers even after being shot. Panglima Hassan in

476-399: A broad range of velocities, expand upon impact at low velocity, tumble upon impact, fragment upon impact, or disintegrate upon impact. To control the expansion of a bullet, meplat design and materials are engineered. The meplat designs are: flat; round to pointed depending on the ogive; hollow pointed which can be large in diameter and shallow or narrow in diameter and deep and truncated which

595-406: A bullet sheds velocity—and crushes a narrower hole—as it penetrates deeper, so the bullet might be crushing a very small amount of tissue (simulating an "ice pick" injury) during its last two or three inches of travel, giving only between 9.5 to 12 inches (240 to 300 mm) of effective wide-area penetration. Also, skin is elastic and tough enough to cause a bullet to be retained in the body, even if

714-472: A bullet that passes through the target does not transfer all of its energy to the target. Lighter bullets tend to have less penetration in soft tissue and therefore are less likely to over-penetrate. Expanding bullets and other tip variations can increase the friction of the bullet through soft tissue, and/or allow internal ricochets off bone, therefore helping prevent over-penetration. Non-penetrating projectiles can also possess stopping power and give support to

833-416: A bullet, which will have the shock effect and stopping effect at short ranges necessary for a military pistol or revolver, should have a caliber not less than .45. ... None of the full-jacketed or metal-patch bullets (all of which were less than cal. . 45) showed the necessary shock effect or stopping power for a service weapon. ... We are not acquainted with any bullet fired from a hand weapon that will stop

952-642: A conqueror", but their wounded pride was assuaged by an offer of twenty million dollars for "Spanish improvements" to the islands. The Spaniards capitulated, and on December 10, 1898, the U.S. and Spain signed the Treaty of Paris, formally ending the Spanish–American War. In Article III, Spain ceded the Philippine archipelago to the United States, as follows: "Spain cedes to the United States the archipelago known as

1071-684: A determined enemy when the projectile traverses soft parts alone. The requirements of such a bullet would need to have a sectional area like that of a 3-inch solid shot the recoil from which when used in hand weapons would be prohibitive. ... Finally the Board reached the conclusion that the only safeguard at close encounters is a well-directed rapid fire from nothing less than a .45-caliber weapon. With this end in view soldiers should be drilled to fire at moving targets until they have attained proficiency as marksmen. The Thompson–LaGarde Tests have since been criticized as being "highly unscientific" and producing

1190-446: A half diameter ogive designed meplat and hard, solid copper alloy material may crush only the tissue directly in front of the bullet. This type of bullet (monolithic-solid rifle bullet) is conducive to causing more temporary cavitation as the tissue flows around the bullet, resulting in a deep and narrow wound channel. A bullet constructed with a two diameter, hollow point ogive designed meplat and low- antimony lead -alloy core with

1309-414: A high-energy missile impact to an extremity. A high-frequency oscillating pressure wave with large amplitude and short duration was found in the brain after the extremity impact of a high-energy missile ..." Wang et al. observed significant damage in both the hypothalamus and hippocampus regions of the brain due to remote effects of the ballistic pressure wave. Emotional shock, terror, or surprise can cause

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1428-402: A knock-out punch to the body, a football player "shaken up" as result of a hard tackle, or a hitter being struck by a fastball . Pain in general has an inhibitory and weakening effect on the body, causing a person under physical stress to take a seat or even collapse. The force put on the body by the temporary cavity is supersonic compression, like the lash of a whip. While the lash only affects

1547-487: A land where many of the people wanted self-government. In 1898, industrialist Andrew Carnegie offered to pay the U.S. government $ 20 million to give the Philippines its independence. On December 21, 1898, McKinley issued a proclamation of " benevolent assimilation , substituting the mild sway of justice and right for arbitrary rule" for "the greatest good of the governed". Referring to the Treaty of Paris, it said that "as

1666-593: A peace protocol had been signed in Washington that afternoon between the U.S. and Spain, suspending hostilities. The full text of the protocol was not made public until November 5, but Article III read: "The United States will occupy and hold the City, Bay, and Harbor of Manila, pending the conclusion of a treaty of peace, which shall determine the control, disposition, and government of the Philippines." After conclusion of this agreement, U.S. President William McKinley proclaimed

1785-601: A period of 15 days. Meanwhile, Felipe Agoncillo , who had been commissioned by the Philippine Revolutionary Government as Minister Plenipotentiary to negotiate treaties with foreign governments, and who had unsuccessfully sought to be seated at the negotiations between the U.S. and Spain in Paris, had traveled to Washington. On January 6, he filed a request for an interview with the President to discuss affairs in

1904-560: A person is sufficiently enraged , determined, or intoxicated , they can simply shrug off the psychological effects of being shot. During the colonial era, when native tribesmen came into contact with firearms for the first time, there was no psychological conditioning that being shot could be fatal, and most colonial powers eventually sought to create more effective manstoppers. Therefore, such effects are not as reliable as physiological effects at stopping people. Animals will not faint or surrender if injured, though they may become frightened by

2023-484: A person or animal is to damage or disrupt their central nervous system (CNS) to the point of paralysis, unconsciousness, or death. Bullets can achieve this directly or indirectly. If a bullet causes sufficient damage to the brain or spinal cord, immediate loss of consciousness or paralysis, respectively, can result. However, these targets are relatively small and mobile, making them extremely difficult to hit even under optimal circumstances. Bullets can indirectly disrupt

2142-466: A person to faint , surrender, or flee when shot or shot at. There are many documented instances where people have instantly dropped unconscious when the bullet only hit an extremity, or even completely missed. Additionally, the muzzle blast and flash from many firearms are substantial and can cause disorientation, dazzling, and stunning effects. Flashbangs ( stun grenades ) and other less-lethal "distraction devices" rely exclusively on these effects. Pain

2261-637: A process towards full independence (originally scheduled for 1944, but delayed by World War II and the Japanese occupation of the Philippines ). The United States eventually granted full Philippine independence in 1946 through the Treaty of Manila . Andrés Bonifacio was a warehouseman and clerk from Manila . On July 7, 1892, he established the Katipunan , a revolutionary organization formed to gain independence from Spanish colonial rule by armed revolt. In August 1896,

2380-645: A recommendation unsupported by the test results. Others, notably Julian Hatcher and Jeff Cooper , regarded the tests as well conducted, and the recommendation as fully supported by the evidence available to the board, and empirical evidence subsequently available concerning stopping power and handgun effectiveness . Philippine%E2%80%93American War American victory 1899–1902: [REDACTED]   United States 1899–1902: [REDACTED]   Philippine Republic 1902–1913: [REDACTED]   United States Visayas Mindanao The Philippine–American War , known alternatively as

2499-462: A result of the victories of American arms, the future control, disposition, and government of the Philippine Islands are ceded to the United States." It enjoined military commander Major General Elwell Stephen Otis to inform Filipinos that "in succeeding to the sovereignty of Spain" the authority of the United States "is to be exerted for the securing of the persons and property of the people of

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2618-473: A short line of tissue across the back of the victim, the temporary cavity affects a volume of tissue roughly the size and shape of a football . Giving further credence to this theory is the support from the aforementioned effects of drugs on incapacitation. Pain killers , alcohol , and PCP have all been known to decrease the effects of nociception and increase a person's resistance to incapacitation, all while having no effect on blood loss. Kinetic energy

2737-461: A step, and in place of withdrawing, I shall advance a little farther. He brings a letter from his general, in which he speaks to me as a friend. I said that from the day I knew that Maquinley (McKinley) opposed our independence I did not want any dealings with any American. War, war, is what we want. The Americans after this speech went off pale. Aguinaldo approved the hostile attitude of Cailles, replying: I approve and applaud what you have done with

2856-415: A suddenly charging animal, like a buffalo or an elephant . A bullet will destroy or damage any tissues which it penetrates, creating a wound channel. It will also cause nearby tissue to stretch and expand as it passes through tissue. These two effects are typically referred to as permanent cavity (the track left by the bullet as it penetrates flesh) and temporary cavity, which, as the name implies,

2975-664: A suspension of hostilities with Spain. In a clash at Cavite between US soldiers and insurgents on August 25, 1898, George Hudson of the Utah regiment was killed, Corporal William Anderson was mortally wounded, and four troopers of the Fourth Cavalry were slightly wounded. This provoked General Anderson to send Aguinaldo a letter saying, "In order to avoid the very serious misfortune of an encounter between our troops, I demand your immediate withdrawal with your guard from Cavite. One of my men has been killed and three wounded by your people. This

3094-412: A target (human or animal) to be incapacitated or immobilized. Stopping power contrasts with lethality in that it pertains only to a weapon's ability to make the target cease action, regardless of whether or not death ultimately occurs. Which ammunition cartridges have the greatest stopping power is a much-debated topic. Stopping power is related to the physical properties and terminal behavior of

3213-437: A thin gilding metal jacket material will crush tissue in front and to the sides as the bullet expands. Due to the energy expended in bullet expansion, velocity is lost more quickly. This type of bullet (hollow-point hand gun bullet) is conducive to causing more permanent cavitation as the tissue is crushed and accelerated into other tissues by the bullet, causing a shorter and wider wound channel. The exception to this general rule

3332-431: A treaty of peace to begin in Paris not later than October 1, 1898. President McKinley sent a five-man commission, initially instructed to demand no more than Luzon , Guam , and Puerto Rico ; which would have provided a limited U.S. empire. In Paris, the commission was besieged with advice, particularly from American generals and European diplomats, to demand the entire Philippine archipelago. The unanimous recommendation

3451-400: Is a function of the bullet's mass and the square of its velocity. Generally speaking, it is the intention of the shooter to deliver an adequate amount of energy to the target via the projectiles. All else held equal, bullets that are light and fast tend to have more energy than those that are heavy and slow. Over-penetration is detrimental to stopping power in regards to energy. This is because

3570-405: Is a long narrow punched hole in the end of a monolithic-solid type bullet. The materials used to make bullets are: pure lead; alloyed lead for hardness; gilding metal jacket which is a copper alloy of nickel and zinc to promote higher velocities; pure copper; copper alloy of bronze with tungsten steel alloy inserts to promote weight. Some bullets are constructed by bonding the lead core to

3689-438: Is another psychological factor, and can be enough to dissuade a person from continuing their actions. Temporary cavitation can emphasize the impact of a bullet, since the resulting tissue compression is identical to simple blunt force trauma. It is easier for someone to feel when they have been shot if there is considerable temporary cavitation, and this can contribute to either psychological factor of incapacitation. However, if

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3808-408: Is if the bullet first had to enter and then exit an outstretched arm before impacting the torso. A bullet with low penetration might embed itself in the arm whereas a higher penetrating bullet would penetrate the arm then enter the thorax where it would have a chance of hitting a vital organ. Excessive penetration or overpenetration occurs when a bullet passes through its intended target and out of

3927-414: Is non-expanding bullets which are long relative to their diameter. These tend to destabilize and yaw (tumble) soon after impact, increasing both temporary and permanent cavitation. Bullets are constructed to behave in different ways, depending on the intended target. Different bullets are constructed variously to: not expand upon impact, expand upon impact at high velocity, expand upon impact, expand across

4046-433: Is one of the most important factors when choosing a bullet (and that the number one factor is shot placement). If the bullet penetrates less than their guidelines, it is inadequate, and if it penetrates more, it is still satisfactory though not optimal. The FBI's penetration requirement is very similar at 12 to 18 inches (300 to 460 mm). A penetration depth of 12.5 to 14 inches (320 to 360 mm) may seem excessive, but

4165-467: Is positive and does not admit of explanation or delay." Internal insurgent communications reported that the Americans were drunk at the time. Halstead writes that Aguinaldo expressed his regret and promised to punish the offenders. In internal insurgent communications, Apolinario Mabini initially proposed to investigate and punish any offenders identified. Aguinaldo modified this, ordering, "... say that he

4284-468: Is premature. Pray reconsider the resolution regarding Iloilo. Filipinos wish for the friendship of America and abhor militarism and deceit. On January 8, Aguinaldo received the following message from Teodoro Sandiko : To the President of the Revolutionary Government, Malolos, from Sandico, Manila. 8 Jan., 1899, 9:40 p.m.: In consequence of the order of General Rios to his officers, as soon as

4403-540: Is primarily a matter of shot location; most persons who are shot in the head are immediately incapacitated, and most who are shot in the extremities are not, regardless of the firearm or ammunition involved. Shotguns will usually incapacitate with one shot to the torso, but rifles and especially handguns are less reliable, particularly those which do not meet the FBI's penetration standard , such as .25ACP , .32 S&W , and rimfire models. More powerful handguns may or may not meet

4522-459: Is the temporary (instantaneous) displacement caused as the bullet travels through flesh, and is many times larger than the actual diameter of the bullet. These phenomena are unrelated to low-pressure cavitation in liquids. The degree to which permanent and temporary cavitation occur is dependent on the mass, diameter , material, design and velocity of the bullet. This is because bullets crush tissue, and do not cut it. A bullet constructed with

4641-463: Is unlikely to cause anything more than a bruise . Some speculation states that nerve bundles can be damaged by temporary cavitation, creating a stun effect, but this has not been confirmed. One exception to this is when a very powerful temporary cavity intersects with the spine . In this case, the resulting blunt trauma can slam the vertebrae together hard enough to either sever the spinal cord, or damage it enough to knock out, stun, or paralyze

4760-522: The .357 Magnum round both have firm reputations as "manstoppers". Historically, one type of ammunition has had the specific tradename "Manstopper". Officially known as the Mk III cartridge , these were made to suit the British Webley .455 service revolver in the early 20th century. The ammunition used a 220- grain (14 g) cylindrical bullet with hemispherical depressions at both ends. The front acted as

4879-443: The 1899 Battle of Manila . Later that day, Aguinaldo declared "That peace and friendly relations with the Americans be broken and that the latter be treated as enemies, within the limits prescribed by the laws of war." The following day, Filipino General Isidoro Torres came through the lines under a flag of truce to deliver a message from Aguinaldo to General Otis that the fighting had begun accidentally, and that Aguinaldo wished for

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4998-509: The Battle of Manila . Shortly after being denied a request for armistice, the Philippine Council of Government issued a proclamation on June 2, 1899 urging the people to continue the war. Philippine forces initially attempted to engage U.S. forces conventionally but transitioned to guerrilla tactics by November 1899. Philippine President Emilio Aguinaldo was captured on March 23, 1901, and

5117-741: The Hassan uprising had to be shot dozens of times before he died. This forced the Americans to phase out .38 Long Colt revolvers and start using .45 Colt against the Moros. British troops used expanding bullets during various conflicts in the Northwest Frontier in India , and the Mahdist War in Sudan . The British government voted against a prohibition on their use at the Hague Convention of 1899, although

5236-954: The Philippine Insurrection , Filipino–American War , or Tagalog Insurgency , emerged following the conclusion of the Spanish–American War in December 1898 when America annexed the Philippine Islands under the Treaty of Paris . Philippine nationalists constituted the First Philippine Republic in January 1899, seven months after signing the Philippine Declaration of Independence . The United States did not recognize either event as legitimate, and tensions escalated until fighting commenced on February 4, 1899 in

5355-679: The U.S. Senate , who argued that the war was a definite example of U.S. imperialism , and that it was an inherent contradiction of the founding principles of the United States contained in the Declaration of Independence . In 1902, the United States Congress passed the Philippine Organic Act , which provided for the creation of the Philippine Assembly , with members to be elected by Filipino men (women did not yet have

5474-509: The ballistics . Despite much disagreement, the most popular theory of stopping power is that it is usually caused not by the force of the bullet but by the wounding effects of the bullet, which are typically a rapid loss of blood causing a circulatory failure , which leads to impaired motor function and/or unconsciousness . The "Big Hole School" and the principles of penetration and permanent tissue damage are in line with this way of thinking. The other prevailing theories focus more on

5593-469: The femur if it is narrowly missed by a bullet. Temporary cavitation can also cause the tearing of tissues if a very large amount of force is involved. The tensile strength of muscle ranges roughly from 1 to 4 MPa (145 to 580 lbf/in ), and minimal damage will result if the pressure exerted by the temporary cavitation is below this. Gelatin and other less elastic media have much lower tensile strengths, thus they exhibit more damage after being struck with

5712-412: The liver or lung will be similar, with the lung shot having the added effect of reducing blood oxygenation; these effects however are generally slower to arise than damage to the heart. A hole through the brain can cause instant unconsciousness and will likely kill the recipient. A hole through the spinal cord will instantly interrupt the nerve signals to and from some or all extremities, disabling

5831-458: The projectile ( bullet , shot , or slug ), the biology of the target, and the wound location, but the issue is complicated and not easily studied. Although higher- caliber ammunitions usually have greater muzzle energy and momentum and thus traditionally been widely associated with higher stopping power, the physics involved are multifactorial, with caliber, muzzle velocity , bullet mass , bullet shape and bullet material all contributing to

5950-431: The "cupped" .455 Webley (UK). The first day of testing involved eight live cattle; seven were shot through the lungs using different caliber rounds, and the effects recorded. The remaining animal was shot through the intestines with the .476 Eley. If the animal took too long to die, it was put down by a hammer blow to the head. Results were highly variable due to differences in shot placement, round types, animal size, and

6069-436: The Americans, and zeal and valour always, also my beloved officers and soldiers there. I believe that they are playing us until the arrival of their reinforcements, but I shall send an ultimatum and remain always on the alert. – E. A. Jan. 10, 1899. The First Philippine Republic was declared on January 21, 1899. Lack of recognition by the United States led to rising tensions and, eventually, to hostilities . On January 31, 1899,

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6188-470: The Benevolent Assimilation proclamation to General Miller for informational purposes. Miller assumed that it was for distribution and, unaware that a politically bowdlerized version had been published by Otis, published the original in both Spanish and Tagalog translations which eventually made their way to Aguinaldo. Even before Aguinaldo received the unaltered version and observed the changes in

6307-523: The CNS by damaging the cardiovascular system so that it can no longer provide enough oxygen to the brain to sustain consciousness. This can be the result of bleeding from a perforation of a large blood vessel or blood-bearing organ, or the result of damage to the lungs or airway. If blood flow is completely cut off from the brain, a human still has enough oxygenated blood in their brain for 10–15 seconds of wilful action, though with rapidly decreasing effectiveness as

6426-574: The Filipino army have pledged their lives that they will not lay down their arms until General Aguinaldo tells them to do so, and they will keep that pledge, I feel confident. The Filipino committees in London, Paris, and Madrid about this time telegraphed to President McKinley: We protest against the disembarkation of American troops at Iloilo. The treaty of peace still unratified, the American claim to sovereignty

6545-514: The Filipino attack begins the Americans should be driven into the Intramuros district and the walled city should be set on fire. Pipi. The New York Times reported on January 8, that two Americans who had been guarding a waterboat in Iloilo had been attacked, one fatally, and that insurgents were threatening to destroy the business section of the city by fire; and on January 10 that a peaceful solution to

6664-630: The Iloilo issues may result but that Aguinaldo had issued a proclamation threatening to drive the Americans from the islands. By January 10, insurgents were ready to take the offensive, but wanted to provoke the Americans into firing the first shot. They increased their hostile demonstrations and entered forbidden territory. Their attitude is illustrated by an extract from a telegram sent by Colonel Cailles to Aguinaldo on January 10, 1899: Most urgent. An American interpreter has come to tell me to withdraw our forces in Maytubig fifty paces. I shall not draw back

6783-579: The Katipunan was discovered by the Spanish authorities and thus launched its revolution. Fighters in Cavite province won early victories. One of the most influential and popular leaders from Cavite was Emilio Aguinaldo , mayor of Cavite El Viejo (modern-day Kawit), who gained control of much of the eastern portion of Cavite province. Eventually, Aguinaldo and his faction gained control of the revolution. After Aguinaldo

6902-661: The Malolos Republic after its capital. Aguinaldo, who had been appointed President by the Malolos Congress on January 1, is today officially considered the first President of the Republic of the Philippines . In July 1898, three months into the Spanish-American War, U.S. command began suspecting Aguinaldo was secretly negotiating with Spanish authorities to gain control of Manila without U.S. assistance, reporting that

7021-514: The Minister of Interior of the Republic, Teodoro Sandiko, signed a decree saying that President Aguinaldo had directed that all idle lands be planted to provide food, in view of impending war with the Americans. On the evening of February 4, Private William W. Grayson fired the war's first shots along Sociego Street towards a sub-post of blockhouse 7 located at the turn towards the blockhouse. A study done by Ronnie Miravite Casalmir places this spot at

7140-605: The Moro-dominated provinces in the south, called the Moro Rebellion by the Americans, ended with their final defeat at the Battle of Bud Bagsak on June 15, 1913. The war resulted in at least 200,000 Filipino civilian deaths, mostly from famine and diseases such as cholera . Some estimates for civilian deaths reach up to a million. War crimes were committed during the conflict by both sides, including torture, mutilation, and summary executions of civilians and prisoners. In retaliation for Filipino guerrilla warfare tactics,

7259-550: The Nelson Morris Company Union Stock Yards in Chicago, Illinois , using both live cattle outside a local slaughterhouse, as well as some human cadavers . To consider different combinations of factors, several different calibers were used during the tests: 7.65×21mm Parabellum (.30 Luger), 9×19mm Parabellum (Germany), .38 Long Colt , .38 ACP , blunt and hollow-point .45 Colt (US), .476 Eley (UK), and

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7378-400: The Philippine Islands, and comprehending the islands lying within the following line: [... geographic description elided ...]. The United States will pay to Spain the sum of twenty million dollars ($ 20,000,000) within three months after the exchange of the ratifications of the present treaty." The U.S. experienced a movement for Philippine independence; some said that the U.S. had no right to

7497-461: The Philippines , had delayed publication of McKinley's proclamation. On January 4, Otis published an amended version edited so as not to convey the meanings of the terms sovereignty , protection , and right of cessation , which were present in the original version. On January 6, 1899, General Otis was quoted in The New York Times as stating "convinced that the U.S. government intends to seek

7616-414: The Philippines and reclaim leadership of the revolution. Aguinaldo and Pratt each offered contradictory accounts of the meeting. Aguinaldo returned to Hong Kong and was transported by the Americans to Cavite, arriving on May 19. He established a temporary Dictatorial Government under which the Philippine Declaration of Independence was proclaimed. About a month later, this temporary dictatorship

7735-408: The Philippines. The next day the government officials were surprised to learn that messages to General Otis to deal mildly with the rebels and not to force a conflict had become known to Agoncillo, and cabled by him to Aguinaldo. On January 8, Agoncillo stated: In my opinion the Filipino people, whom I represent, will never consent to become a colony dependency of the United States. The soldiers of

7854-547: The Revolutionary Government between June and September 10, seating a legislature known as the Malolos Congress. In a session between September 15 and November 13, 1898, the Malolos Constitution was adopted. It was promulgated on January 21, 1899, creating the First Philippine Republic with Emilio Aguinaldo as president. Article V of the peace protocol signed on August 12 had mandated negotiations to conclude

7973-492: The Spanish government ceded the Philippines to the United States in the 1898 Treaty of Paris , which was signed on December 10, 1898, in consideration for an indemnity for Spanish expenses and assets lost. The Malolos Congress drafted a constitution that led to the formal establishment of the Philippine Republic by late January 1899. This government would later become known as the First Philippine Republic and also

8092-575: The U.S. carried out reprisals and scorched earth campaigns and forcibly relocated many civilians to concentration camps , where thousands died. The war and subsequent occupation by the U.S. changed the culture of the islands, leading to the rise of Protestantism , disestablishment of the Catholic Church , and the adoption of English by the islands as the primary language of government, education, business, and industry. The U.S. annexation and war sparked political backlash from anti-imperialists in

8211-454: The actions. U.S. commanders came to suspect that Philippine rebel forces were informing Spanish forces of U.S. troop movements. U.S. and Spanish commanders negotiated a secret agreement to stage a mock battle in Manila, after which Spanish forces would surrender to U.S. forces. Philippine rebels would not be allowed to enter the city. Fighting between U.S. and Philippine troops almost broke out as

8330-428: The brain of pigs and demonstrated that a significant pressure wave reaches the brain of pigs shot in the thigh. These scientists observed neural damage in the brain caused by the distant effects of the ballistic pressure wave originating in the thigh. The results of Suneson et al. were confirmed and expanded upon by a later experiment in dogs which "confirmed that distant effect exists in the central nervous system after

8449-454: The bullet had a relatively high velocity when it hit the skin. About 250 feet per second (76 m/s) velocity is required for an expanded hollow point bullet to puncture skin 50% of the time. The IWBA's and FBI's penetration guidelines are to ensure that the bullet can reach a vital structure from most angles, while retaining enough velocity to generate a large diameter hole through tissue. An extreme example where penetration would be important

8568-555: The bullet's kinetic energy with respect to position). The ballistic pressure wave is proportional to this retarding force (Courtney and Courtney), and this retarding force is also the origin of both temporary cavitation and prompt damage (CE Peters). Hydrostatic shock is a controversial theory of terminal ballistics that states a penetrating projectile (such as a bullet) can produce a sonic pressure wave that causes "remote neural damage", "subtle damage in neural tissues" and/or "rapid incapacitating effects" in living targets. Proponents of

8687-563: The chest, perforating the lungs. One passed through the body, one lodged near the back and the other lodged in subcutaneous tissue. The fourth round went through the right hand and exited through the forearm. So the Army began looking for a solution. The task was assigned to Colonel John T. Thompson of the Infantry , and Major Louis Anatole LaGarde of the Medical Corps . The tests were conducted at

8806-417: The commission that "cessation of Luzon alone, leaving the rest of the islands subject to Spanish rule, or to be the subject of future contention, cannot be justified on political, commercial, or humanitarian grounds. The cessation must be the whole archipelago or none. The latter is wholly inadmissible, and the former must therefore be required." The Spanish negotiators were furious over the "immodist demands of

8925-438: The copy he had received from Otis, he was upset that Otis had altered his own title to "Military Governor of the Philippines" from "... in the Philippines", a change that Otis had made without authorization. The original proclamation was given by supporters to Aguinaldo who, on January 5, issued a counter-proclamation: Such procedures, so foreign to the dictates of culture and the usages observed by civilized nations, gave me

9044-484: The corner of Sociego Street and Tomas Arguelles Street, not at the corner of Sociego-Silencio. According the National Historical Commission of the Philippines , two unarmed soldiers were killed. According to Grayson's account, his patrol ordered four Filipino soldiers to "Halt!" and, when the men responded by cocking their rifles, they fired on them and then retreated. The outbreak of violence triggered

9163-456: The denunciation, some revolutionaries continued armed resistance against the Spanish colonial government. On April 22, 1898, the exiled Aguinaldo privately met in Singapore with United States Consul E. Spencer Pratt . Pratt was later severely rebuked for having met with Aguinaldo and told, "Your action was unauthorized and can not be approved", but the meeting convinced Aguinaldo to return to

9282-476: The effect of temporary cavitation. The fragments sheared from the bullet cause many small permanent cavities around the main entry point. The main mass of the bullet can then cause a truly massive amount of tearing as the perforated tissue is stretched. Whether a person or animal will be incapacitated (i.e. "stopped") when shot, depends on a large number of factors, including physical, physiological, and psychological effects. The only way to immediately incapacitate

9401-614: The energy of the bullet and its effects on the nervous system , including hydrostatic shock and energy transfer , which is similar to kinetic energy deposit. The concept of stopping power appeared in the tail end of the 19th century when colonial troops (including American troops in the Philippines during the Moro Rebellion , and British soldiers during the New Zealand Wars ) at close quarters found that their pistols were not able to stop charging native tribesmen. This led to

9520-526: The energy transfer hypothesis. Notable examples of projectiles designed to deliver stopping power without target penetration are Flexible baton rounds (commonly known as "beanbag bullets") and the rubber bullet , types of reduced-lethality ammunition . The force exerted by a projectile upon tissue is equal to the bullet's local rate of kinetic energy loss, with distance d E k / d x {\displaystyle \mathrm {d} E_{k}/\mathrm {d} x} (the first derivative of

9639-473: The establishment of a liberal government, in which the people will be as fully represented as the maintenance of law and order will permit, susceptible of development, on lines of increased representation, and the bestowal of increased powers, into a government as free and independent as is enjoyed by the most favored provinces in the world." Unknown to Otis, the War Department had sent an enciphered copy of

9758-523: The former moved to dislodge the latter from strategic positions around Manila. On the eve of the staged battle, Anderson telegraphed Aguinaldo, "Do not let your troops enter Manila without the permission of the American commander. On this side of the Pasig River you will be under fire." On August 13, U.S. forces captured Manila. Relations between the U.S. and Philippine rebels continued to deteriorate. On August 12, 1898, The New York Times reported that

9877-444: The forward motion of an attacker and physically knock them backwards or downwards. It follows from the law of conservation of momentum that no "knockback" could ever exceed the recoil felt by the shooter, and therefore has no use as a weapon. The myth of "knockback" has been spread through its confusion with the phrase "stopping power" as well as by many films, which show bodies flying backward after being shot. The idea of knockback

9996-420: The hostilities to cease immediately and for the establishment of a neutral zone. Otis dismissed these overtures, and replied that the "fighting, having begun, must go on to the grim end". On February 5, General Arthur MacArthur ordered his troops to advance against Filipino troops. Stopping power Stopping power is the ability of a weapon – typically a ranged weapon such as a firearm – to cause

10115-578: The insurgents on December 26. An American brigade under General Marcus P. Miller arrived on December 28 and opened communications with the insurgents. A Filipino official styling himself "Presidente Lopez of the Federal Government of the Visayas", stated landing required "express orders from the central government of Luzon" and refused permission to land. That news reached Washington on January 1, 1899. Otis, who had been appointed Military Governor of

10234-615: The introduction or reintroduction of larger caliber weapons (such as the older .45 Colt and the newly developed .45 ACP ) capable of stopping opponents with a single round. During the Seymour Expedition in China, at one of the battles at Langfang , Chinese Boxers , armed with swords and spears, conducted a massed infantry charge against the forces of the Eight-Nation Alliance , who were equipped with rifles. At point-blank range,

10353-433: The islands and for the confirmation of all their private rights and relations". The proclamation specified that "it will be the duty of the commander of the forces of occupation to announce and proclaim in the most public manner that we come, not as invaders or conquerors, but as friends, to protect the natives in their homes, in their employments, and in their personal and religious rights". The Spaniards yielded Iloilo to

10472-686: The jacket to promote higher weight retention upon impact, causing a larger and deeper wound channel. Some bullets have a web in the center of the bullet to limit the expansion of the bullet while promoting penetration. Some bullets have dual cores to promote penetration. Bullets that might be considered to have stopping power for dangerous large game animals are usually 11.63 mm (.458 caliber) and larger, including 12-gauge shotgun slugs. These bullets are monolithic-solids; full metal jacketed and tungsten steel insert. They are constructed to hold up during close range, high velocity impacts. These bullets are expected to impact and penetrate, and transfer energy to

10591-576: The loud noise and pain of being shot, so psychological mechanisms are generally less effective against non-humans. According to Dr. Martin Fackler and the International Wound Ballistics Association (IWBA), between 12.5 and 14 inches (320 and 360 mm) of penetration in calibrated tissue simulant is optimal performance for a bullet which is meant to be used defensively, against a human adversary. They also believe that penetration

10710-401: The more energy transferred to the target, the greater the stopping power. It postulates that the pressure wave exerted on soft tissues by the bullet's temporary cavity hits the nervous system with a jolt of shock and pain and thereby forces incapacitation. Proponents of this theory contend that the incapacitation effect is similar to that seen in non-concussive blunt-force trauma events, such as

10829-530: The name of God, the root and fountain of all justice, and that of all the right which has been visibly granted to me to direct my dear brothers in the difficult work of our regeneration, protest most solemnly against this intrusion of the United States Government on the sovereignty of these islands. I equally protest in the name of the Filipino people against the said intrusion, because as they have granted their vote of confidence appointing me president of

10948-436: The nation, although I don't consider that I deserve such, therefore I consider it my duty to defend to death its liberty and independence. Otis, taking these two proclamations as tantamount to war, strengthened American observation posts and alerted his troops. Aguinaldo's proclamations energized the masses with a vigorous determination to fight what was perceived as an ally turned enemy. Some 40,000 Filipinos fled Manila within

11067-442: The number of times the animal was shot, according to Day/Velleux. For the second day, the test procedures were changed so that each animal would be rapidly shot in the lungs until the animal had died or 10 rounds had been fired. For this test, five to ten animals were used (LaGarde said sixteen cattle and two horses were shot, Day/Velleux says thirteen cattle). Again, results were highly variable, and weapon jamming also contributed to

11186-453: The other side, with enough residual kinetic energy to continue flying as a stray projectile and risk causing unintended collateral damage to objects or persons beyond. This happens because the bullet has not released all its energy within the target, according to the energy transfer hypothesis. These hypotheses are a matter of some debate among scientists in the field: The energy transfer hypothesis states that for small arms in general,

11305-473: The process. The effects of temporary cavitation are less well understood, due to a lack of a test material identical to living tissue. Studies on the effects of bullets typically are based on experiments using ballistic gelatin , in which temporary cavitation causes radial tears where the gelatin was stretched. Although such tears are visually engaging, some animal tissues (but not bone or liver) are more elastic than gelatin. In most cases, temporary cavitation

11424-469: The prohibition only applied to international warfare. In response to addressing stopping power issues, the Mozambique Drill was developed to maximize the likelihood of a target's quick incapacitation. "Manstopper" is an informal term used to refer to any combination of firearm and ammunition that can reliably incapacitate, or "stop", a human target immediately. For example, the .45 ACP round and

11543-416: The rebel leader was restricting delivery of supplies to U.S. forces. General Thomas M. Anderson assessed that a rebel controlled Manila would be able to resist any U.S. attempt to establish a provisional government. General Wesley Merritt disregarded an Aguinaldo warning not to disembark American troops in places liberated by Filipinos without first informing him in writing about the places and purposes of

11662-528: The recall of undistributed copies and issued another proclamation, which was published the same day in El Heraldo de la Revolucion , the official newspaper of the Philippine Republic. His statement in part said: As in General Otis's proclamation he alluded to some instructions edited by His Excellency the President of the United States, referring to the administration of the matters in the Philippine Islands, I in

11781-400: The right to act without observing the usual rules of intercourse. Nevertheless, in order to be correct to the end, I sent to General Otis commissioners charged to solicit him to desist from his rash enterprise, but they were not listened to. My government can not remain indifferent in view of such a violent and aggressive seizure of a portion of its territory by a nation which arrogated to itself

11900-483: The right to vote). This act was superseded by the 1916 Jones Act (Philippine Autonomy Act), which contained the first formal and official declaration of the United States government's commitment to eventually grant independence to the Philippines. The 1934 Tydings–McDuffie Act (Philippine Independence Act) created the Commonwealth of the Philippines the following year. The act increased self-governance and established

12019-458: The same amount of force. At typical handgun velocities, bullets will create temporary cavities with much less than 1 MPa of pressure, and thus are incapable of causing damage to elastic tissues that they do not directly contact. Rifle bullets that strike a major bone (such as a femur) can expend their entire energy into the surrounding tissue. The struck bone is commonly shattered at the point of impact. High velocity fragmentation can also increase

12138-420: The standard, or may even overpenetrate, depending on what ammunition is used. Fully jacketed bullets penetrate deeply without much expansion, while soft or hollow point bullets create a wider, shallower wound channel. Pre-fragmented bullets such as Glaser Safety Slugs and MagSafe ammunition are designed to fragment into birdshot on impact with the target. This fragmentation is intended to create more trauma to

12257-403: The surrounding tissues and vital organs through the entire length of a game animal's body if need be. The stopping power of firearms when used against humans is a more complex subject, in part because many persons voluntarily cease hostile actions when shot; they either flee, surrender, or fall immediately. This is sometimes referred to as "psychological incapacitation". Physical incapacitation

12376-400: The target and in many cases also resulting in death (as the nerve signals to and from the heart and lungs are interrupted by a shot high in the chest or to the neck). By contrast, a hole through an arm or leg which hits only muscle will cause a great deal of pain but is unlikely to be fatal, unless one of the large blood vessels ( femoral or brachial arteries, for example) is also severed in

12495-510: The target, and also to reduce collateral damage caused from ricocheting or overpenetrating of the target and the surrounding environments such as walls. Fragmenting rounds have been shown to be unlikely to obtain deep penetration necessary to disrupt vital organs located at the back of a hostile human. Permanent and temporary cavitation cause very different biological effects. A hole through the heart will cause loss of pumping efficiency, loss of blood, and eventual cardiac arrest . A hole through

12614-468: The target. For instance, in the shootout between eight FBI agents and two bank robbers in the 1986 FBI Miami shootout , Special Agent Gordon McNeill was struck in the neck by a high-velocity .223 bullet fired by Michael Platt. While the bullet did not directly contact the spine, and the wound incurred was not ultimately fatal, the temporary cavitation was sufficient to render SA McNeill paralyzed for several hours. Temporary cavitation may similarly fracture

12733-425: The theory contend that damage to the brain from hydrostatic shock from a shot to the chest occurs in humans with most rifle cartridges and some higher-velocity handgun cartridges. Hydrostatic shock is not the shock from the temporary cavity itself, but rather the sonic pressure wave that radiates away from its edges through static soft tissue. The idea of "knockback" implies that a bullet can have enough force to stop

12852-441: The thorax and extremities. These papers document remote wounding effects for both rifle and pistol levels of energy transfer. Recent work by Courtney and Courtney provides compelling support for the role of a ballistic pressure wave in creating remote neural effects leading to incapacitation and injury. This work builds upon the earlier works of Suneson et al. where the researchers implanted high-speed pressure transducers into

12971-521: The title champion of oppressed nations. Thus it is that my government is disposed to open hostilities if the American troops attempt to take forcible possession of the Visayan Islands. I denounce these acts before the world, in order that the conscience of mankind may pronounce its infallable verdict as to who are the true oppressors of nations and the tormentors of human kind. After some copies of that proclamation had been distributed, Aguinaldo ordered

13090-400: The variability this time, according to Day/Velleux. The cadaver tests were conducted by suspending the body, and measured the sway caused when the body was shot from different distances. As the suspended body constituted a ballistic pendulum , this measured the relative momentum of the rounds to some extent. After the tests, Thompson and LaGarde stated: the Board was of the opinion that

13209-586: The victim begins to lose consciousness. Unless a bullet directly damages or disrupts the central nervous system, a person or animal will not be instantly and completely incapacitated by physiological damage. However, bullets can cause other disabling injuries that prevent specific actions (a person shot in the femur cannot run) and the physiological pain response from severe injuries will temporarily disable most individuals. Several scientific papers reveal ballistic pressure wave effects on wounding and incapacitation, including central nervous system injuries from hits to

13328-584: The war was officially declared over by the US on July 4, 1902. However, some Philippine groups – some led by veterans of the Katipunan , a Philippine revolutionary society that had launched the revolution against Spain – continued to fight for several more years. Other groups, including the Muslim Moro peoples of the southern Philippines and quasi-Catholic Pulahan religious movements, continued hostilities in remote areas. The resistance in

13447-761: Was elected president of a revolutionary government superseding the Katipunan at the Tejeros Convention on March 22, 1897, his government had Bonifacio executed for treason after a show trial on May 10, 1897. By late 1897, after a succession of defeats for the revolutionary forces, the Spanish had regained control over most of rebel territory. Aguinaldo and Spanish Governor-General Fernando Primo de Rivera entered into armistice negotiations while Spanish forces surrounded Aguinaldo's hideout and base in Biak-na-Bato in Bulacan province. On December 14, 1897, an agreement

13566-491: Was first widely expounded in ballistics discussions during American involvement in Philippine insurrections and, simultaneously, in British conflicts in its colonial empire, when front-line reports stated that the .38 Long Colt caliber revolvers carried by U.S. and British soldiers were incapable of bringing down a charging warrior. Thus, in the early 1900s, the U.S. reverted to the .45 Colt in single action revolvers, and later adopted

13685-448: Was later recounted by Col. Louis A. LaGarde: Antonio Caspi, a prisoner on the island of Samar, P.I. attempted escape on Oct. 26, 1905. He was shot four times at close range in a hand-to-hand encounter by a .38 Colt's revolver loaded with U.S. Army regulation ammunition. He was finally stunned by a blow on the forehead from the butt end of a Springfield carbine. Col. LaGarde noted Caspi's wounds were fairly well-placed: three bullets entered

13804-507: Was not killed by your soldiers, but by them themselves [the Americans] since they were drunk according to your telegram". An insurgent officer in Cavite at the time reported on his record of services that he: "took part in the movement against the Americans on the afternoon of the 24th of August, under the orders of the commander of the troops and the adjutant of the post". Elections were held by

13923-555: Was reached in which the Spanish colonial government would pay Aguinaldo $ MXN800,000 in three installments if Aguinaldo went into exile outside the Philippines. Aguinaldo and 25 of his closest associates left their headquarters at Biak-na-Bato and made their way to Hong Kong , in accord with the agreement. Before his departure, Aguinaldo denounced the Philippine Revolution, exhorted rebel combatants to disarm, and declared those who continued hostilities to be bandits. Despite

14042-558: Was replaced with a Revolutionary Government that appointed Aguinaldo as President. Less than three months after his return, the Philippine Revolutionary Army established control over nearly all the Philippines Islands with the exception of Manila, which was surrounded by revolutionary forces some 12,000 strong. The Philippine Declaration of Independence was not recognized by either the United States or Spain, and

14161-514: Was that "it would certainly be cheaper and more humane to take the entire Philippines than to keep only part of it." McKinley concluded after much consideration that returning the Philippines to Spain would have been “cowardly and dishonorable,” that turning them over to “commercial rivals” of the United States would have been “bad business and discreditable,” and that the Filipinos “were unfit for self-government.” On October 28, 1898, McKinley wired

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