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37-578: In 1993, Blaser developed the Blaser R93 straight-pull bolt-action hunting rifle, a major success in the European market because of its main focus in security and innovative bolt-action design. Blaser makes their barrels by hammer forging. The R93 series can change calibers in minutes with very little effort. In the first 10 years, over 100,000 of the R93 Action-Bolt rifles were fabricated. When production of

74-471: A combination of an overpressure and a problem with the casing of the cartridge. Svensson told the Swedish hunting and firearms magazine Svensk Jakt that he had difficulties getting his firearm back from the testing, and that it had been modified when he finally received it. He stated that the chamber and bolt head had been chopped off, and that the barrel did not have a stamped serial number anymore, and claimed

111-473: A direct trigger, also known as single-stage triggers. The manual cocking system, or "de-cocking safety", enables the shooter to securely carry the weapon, only cocking the rifle just before the shot. Per US importer armusa.com, http://armusa.com/SigarmsRifles6.htm "Also contributing to the Blaser's performance are its patented sear-free trigger mechanism and completely free-floated barrel." A free-floated barrel

148-413: A new magazine, barrel, bolt head and bolt catch insert. The rifle has a shorter overall length compare to more traditional designs due to the trigger being placed under the magazine. The rifle also has a reputation for being easy to disassemble and reassemble which can be an advantage when doing maintenance or during travelling, and has a reputation for having a repeatable zero upon reassembly. The Blaser

185-785: A ring mount version). These include the Zeiss Victory Diarange laser rangefinder scope and the Zeiss Varipoint iC models. In late 2017, Blaser released their Infinity iC (illumination Control) line of scopes which also only uses the Zeiss rail system. Aftermarket mounts compatible with the Zeiss rail system are offered by several well known manufacturers such as Blaser , EAW, Henneberger, Innomount, Kozap, MAK, Recknagel, Rusan, Uronen Precision , Virtus, and Ziegler. Both two-piece or monobloc mounts are offered. Compatible mounts are offered in different configurations, depending on

222-513: A scope mount is an important factor contributing to how high the scope will sit on a rifle. "Construction height" typically refers to only the height contribution from the mount itself, and is typically provided by the mount manufacturer. Low Zeiss rail mounts typically have a construction height between 7–9 mm (0.28–0.35 in) for traditional bolt action hunting rifles, but can be up to 23 mm (0.91 in) for modern bolt and AR-style rifles . A Zeiss rail system typically adds height to

259-478: A shotgun/slug barrel. The barrel has a quick-change design which lets the user switch barrels using two screws and a hex key . Different bolt heads for different groups of calibers and magazine inserts are also user changeable, making the Blaser R93 a modular firearm capable of using a multitude of calibers in its chassis. A R93 Rimfire conversion kit was also available in .22 Long Rifle and .17 HMR consisting of

296-549: A skull fracture requiring titanium replacement. Sørlie reported that had used handloaded ammunition loaded with 5.05 g (77.9 gr) Norma MRP powder and a 12.7 g (196 gr) projectile. In January 2004, 38-year-old German Albrecht Huf had an accident near Koblenz in Germany where his R93 chambered in .300 Weatherby Magnum exploded. Huf sustained injury to his thumb, jaw and zygomatic bone . He claimed to have used Weatherby factory ammunition only. An investigation by

333-486: A torque between 4–5 N⋅m (3.0–3.7 lbf⋅ft). The Zeiss rail system can be found on some models from scope manufacturers such as Docter, Leica, Minox, Meopta and Schmidt & Bender, and sometimes only on high end models. Often the manufacturer will offer these models in two variations; one for traditional ring mounts, and another for the Zeiss rail mount. There are also examples of rifle scopes that have been sold exclusively for Zeiss rail mounts (i.e. no option for

370-454: Is a straight-pull action precision rifle offered in a multitude of calibers and barrel lengths manufactured by the German ; firearms manufacturer Blaser . Designed by Blasers' designer Mr. Meinhard Zeh in 1993, it had a number of features rare on modern hunting rifles, including a manual cocking system and a proprietary Blaser saddle scope mount for mounting the optic directly to

407-458: Is a common modern accurizing technique, but searless triggers are quite novel. The R93 straight-pull bolt action locks by a 14-lug radial collet in a 360 degrees groove in the barrel and is designed to withstand pressures significantly exceeding the Mauser 98 –type bolt-action rifles. The Blaser R93 displays a locking surface of 66 mm (0.102 in ) compared to 56 mm (0.087 in ) for

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444-438: Is a ringless scope sight mounting system introduced by Zeiss in 1990 as an alternative to traditional ring mounts . A patent was granted in 1992, and the patent expired in 2008. The mounting system is now also offered on sights sold by other major manufacturers, such as Blaser , Leica , Minox , Meopta , Nikon , Noblex (formerly Docter ), Schmidt & Bender and Steiner . The system has so far seen most use on

481-567: Is achieved with the bolt handle, secondary lockup on the R93 this is achieved with a camplate which supports the locked action against a hardened steelplate in the rear part of the magazine-box. The bolt knob uses M6 threads, enabling the use of aftermarket bolt knobs. Below is a list of some of the available factory chamberings for the R93. Several different barrel profiles were also available, such as Standard, Octagonal, Semi Weight, "Stutzen", Match or Safari Letters in parentheses corresponding stamping on

518-504: Is typically provided by the scope manufacturer, along with the ~5.5 mm constant term due to the rail piece on the scope. The distance from the center of bore to the top of the receiver interface is of interest for ballistics calculations, like when constructing a ballistic table . Competing standards to the Zeiss rail include the Swarovski SR rail and Schmidt & Bender Convex rail. The three systems are not compatible. While

555-511: Is unique because the scope mounts on the barrel instead of the receiver. A Scope/barrel assembly can be removed and replaced with no change in zero. In 2009, Blaser and Carl Zeiss AG began offering a scope that switches on a red dot when the R93/R8 are cocked ("Zeiss Illumination Control/iC"). The iC system is based on the Zeiss rail . To avoid accidents with set triggers, Blaser offers the R93 only with

592-460: The quick-change barrel . In 2002, more than 100,000 complete Blaser R93 rifles had been produced. By 2017, more than 200,000 R93 rifles had been produced, but it is not clear whether the R93 Tactical variant is included in these numbers. The predecessor of the R93 was the 60 degree turn bolt action Blaser R84, which was discontinued after the introduction of the R93 in 1993. The successor of

629-410: The European high-end market. Before the Zeiss rail, many European scope manufacturers used to offer a single type of standardized ringless mounting solution known as standard prism . This mounting solution was also known under names such as exterior rail , 70° prism rail or LM rail (Light Metal). Compared to ring mounts, this type of mounting rail permitted mounting without putting compression on

666-507: The German DEVA institute concluded that handloaded .300 Weatherby Magnum ammunition had been used that greatly exceeded the maximum safe gas pressure for the round. In July 2009, Spaniard Jesus Nieto had an accident near Madrid in Spain where his R93 rifle chambered for 7mm Remington Magnum exploded, causing the bolt carrier to hit and damage his maxilar bone . The accident was determined by

703-451: The Mauser 98. The bolt is symmetric and self-centering, providing a basis for increased accuracy. The stressed parts are made out of hammer forged steel and plasma nitrided to provide corrosion resistance and mechanical strength. In addition to the primary lockup by the bolt head into the barrel, the R93 also features a secondary lockup for added safety. While secondary lockup on turn bolt rifles

740-641: The R93 Offroad model. Due to the increased risk of accidents, Blaser offered to replace all such plastic bolt carriers with a regular aluminum bolt carrier for free. In May 2003, Blaser issued a recall on all R93 rifles sold in the United States, except the UIT, CISM, and LRS/LRS2 models, because non-stainless steel pins inadvertently had been used in some trigger units. Owners were urged to have their rifles inspected by Blaser's US representative to see if their trigger unit

777-616: The R93 ended in 2016/2017, there had been produced more than 200 000 complete R93 rifles. In 2015 there had been produced more than 100 000 complete Blaser R8 rifles. Blaser merged with SIGARMS in 1997, but continues autonomously producing and developing hunting rifles. In 1999 SIGARMS began distribution of Blaser in the USA. Today, its product portfolio includes straight pull model Blaser R8 , combination guns (Drillings and Double rifles), shotguns ( Blaser F3 and F16), and single shot rifles. In 2017 Blaser started producing binoculars and

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814-534: The R93, the Blaser R8 , was introduced in 2008. Production of the R93 ended by 2017, though Blaser continued to offer spare parts as stock allowed. The Blaser R93 is a truly modular system built around an aluminium alloy frame, offering differing stocks and barrels varying length and thickness available in chamberings from .22 LR to .375 H&H Magnum / .416 Remington Magnum / .458 Winchester Magnum size. It also came in caliber 28 (13.97 mm; 0.550 in) as

851-576: The Zeiss rail has a stepless dovetail shaped mounting surface, the Swarovski SR rail has a finely toothed rail, and the S&;B Convex has a smooth convex rail. Swarovski applied for patent on their SR rail system in 2002, and introduced to the product to the market in late 2005. The Swarovski SR rail is also used by Kahles, a Swarovski subsidiary. The Convex rail has been offered by Schmidt & Bender since at least 2005, and has also been marketed under

888-500: The Zeiss rail was to avoid such drilling. The Zeiss rail system was introduced in 1990 as an option on all Zeiss ZM/Z riflescopes, the top-of-the-line riflescope offered by Zeiss at that time. The system was later offered on the new top of line VM/V models. For these reasons, some sources have referred to the Zeiss rail system under names such as Zeiss ZM/VM rail or Zeiss M rail . Names such as Zeiss Integral rail , Zeiss 45° rail or simply Z rail have also been used. Compared to

925-404: The bolt back, which resulted in the bolt hitting his hand. The Swedish Blaser distributor later stated that while it is possible to pull the trigger without the bolt being fully locked into battery, the firing pin is designed such that it will not hit the primer with sufficient force to ignite the cartridge. Zeiss rail Zeiss inner rail , generally simply referred to as Zeiss rail ,

962-497: The bolt head. The R93 was upgraded to the Blaser R8 introduced in 2008, which has a detachable box magazine/trigger combination. Production of complete R93 rifles ceased in 2016. The Blaser R8 displays an enlarged locking surface of 96 mm (0.149 in ) compared to 66 mm (0.102 in ) of the R93. While the R93 collet has a locking angle of about 50 degrees, the angle of the R8 has been steepened to almost 90 degrees. Further

999-556: The bolt hitting his face. Svensson was using Norma factory ammunition. He turned in the rifle to Blaser, but wanted the Swedish National Forensic Centre to investigate the matter. However, he later agreed to the wish of Blaser and its Swedish distributors that all technical investigation would be performed by the German DEVA institute. The DEVA report concluded that the damages to the firearm almost certainly came from

1036-410: The diameter of the scope tube itself also affects the distance from the bore to the crosshair. Mainly, a larger main tube will increase the total height by half the main tube difference (a 36 mm tube will thus typically sit 3 mm higher than a 30 mm tube, all else being equal). The height contribution from the scope body, that is from the bottom of the scope body to the center of the reticle,

1073-563: The following year also telescopic sights and Reflector sight called RD 17. All of the Blaser sport optics products are price positioned in the highest premium class. The following models are currently available. All Blaser binoculars feature Abbe-Koenig prisms. All Blaser Infinity rifle scopes have a 36mm main tube and can only be mounted with rail. The rail standard used is the Zeiss ZM/VM type. The RD 20 comes with original Blaser saddle mount included. Blaser R93 The Blaser R93

1110-490: The internal mechanics of the scope. The system allowed the shooter to place the scope at their preferred height and correct eye relief (distance to the eye), as well as the opportunity to easily move the scope between different firearms. However, the standard prism had an aesthetic drawback in that the scope rail had to drilled on the side for attachment screws. In case the rifle scope was to be used on different guns, new holes often had to be drilled. A motivation for developing

1147-624: The mounting opportunities on the firearm receiver . Examples include Picatinny , Weaver or different types of claw or swing (pivot) mounts. The height placement of the scope on a rifle should be matched to the stock dimensions and personal preference. In general, a higher scope mount can give better recoil control, while a lower mount can give the firearm better balance. Especially the cheek rest and scope height together play an important role for comfortable shooting. Some cheek rests or scope mounts have adjustable height. The following section mentions relevant terminology. The construction height of

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1184-404: The older prism rail, the Zeiss rail does not require any drilling, and therefore provides easier mounting to the user, as well as improved aesthetics. Compatible scopes have an internal dovetail rail where two or more 45-degree wedge nuts can be slid in. For example, EAW uses wedge nuts with M5 or M4 threads. The scope mount is then attached using simple hand tools like a torx key or hex key to

1221-532: The radial collet opens differently. This results in a less smooth operating bolt of the R8 when compared to the R93 series and some weight increase. Other differences are that the R8 is a little heavier and is offered in a wider range of chamberings. Parts for the R93 in general do not fit the R8 series rifles, except for scope mounts. In 2000, a recall was announced on R93 rifles delivered with plastic bolt carriers. According to Blaser, only 0.4% of all R93 rifles had been delivered with plastic bolt carriers, and only on

1258-458: The scope body, but also gives the possibility for a slimmer scope mount so that the total scope height can become comparable to a traditional ring mount. The added scope body height due to the rail piece on the scope itself contributes about 5.5 mm (0.22 in) to the total height. This can be treated like a constant term which can be added to adapt traditional scope height equations for the Zeiss rail system. Like with traditional ring mounts,

1295-444: The serial number appeared to have been reapplied by hand. He also claimed his rifle originally had a front sight mounted to it which was missing on the returned barrel. In August 2014, Svensk Jakt wrote that another Swede, Tony Kristoffersson, had experienced an explosion with his R93 while on a Beaver hunt the same year. He described that his rifle had made a clicking sound as if it had failed to fire, but exploded when he tried to pull

1332-474: The shooter to be due to faulty ammunition leaving a fired bullet stuck in the barrel, causing an explosion on the subsequent shot. The shooter stated that he had used Remington Safari Grade commercial ammunition. In July 2014, 69-year-old Christer Svensson experienced an accident where his R93 chambered for .30-06 Springfield exploded while loading his rifle on a shooting range near Bollnäs in Sweden, resulting in

1369-445: Was affected, and if so be changed from a non-stainless to a stainless one. In 1994, after a shooting accident near Koblenz in Germany, the R93 was criticised with claims that it could not withstand high pressures, and that the bolt would unlock when excessive pressures were generated. In August 2003, 41-year-old Norwegian Jan Sørlie had an accident where his R93 chambered for 8×68mm S exploded, resulting in loss of an eye and

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