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In 1925, Winchester introduced the .270 Winchester, previously known as the .270 WCF, based on the 30-06 Springfield case necked down to .277" (6.8 mm). Although the .270 Winchester was not an instant success, within a few decades it became one of the most popular big game hunting cartridges for mid sized game worldwide, because of its relatively mild recoil and flat trajectory within ...
The 6.8mm Remington Special Purpose Cartridge (6.8 SPC, 6.8 SPC II or 6.8×43mm) is a rimless bottlenecked intermediate rifle cartridge that was developed by Remington Arms in collaboration with members of the U.S. Army Marksmanship Unit and United States Special Operations Command [6] to possibly replace the 5.56 NATO cartridge in short barreled rifles (SBR) and carbines.
The Barrett M468 rifle employed the same Stoner bolt and carrier piston system as the M4. [6] The weakness of such a system is that it distributes hot gases and unburnt propellant directly into the rifle’s receiver, leading to overheating and potential stoppages if regular maintenance and cleaning protocols are overlooked. [ 9 ]
The 270 Winchester Short Magnum or 270 WSM is a short magnum cartridge created by necking down the .300 Winchester Short Magnum and fitting it with a .277 caliber bullet. The correct name for the cartridge, as listed by the Sporting Arms and Ammunition Manufacturers' Institute (), is 270 WSM, without a decimal point. [3]
List of rifle cartridges, by primer type, calibre and name. ... 6.8 Western; 7 mm–8 mm. 7mm BR Remington; 7.45mm Ingram; 7×54mm Finnish; 7×54mm Fournier;
The XM250 light machine gun and XM7 rifle were designed to fire the 6.8×51mm SIG Fury cartridge in response to concerns that improvements in body armor would diminish the effectiveness of common battlefield rounds such as the 5.56×45mm NATO (used in the M4 carbine and M249 light machine gun) and 7.62×51mm NATO. [8] [9] [10]
Soldiers from Training and Doctrine Command with an XM7 rifle (near) and XM250 light machine gun (far). The XM7 rifle weighs 8.38 lb (3.80 kg), or 9.84 lb (4.46 kg) with a suppressor. It uses SR-25 pattern magazines that hold 20 rounds in a box magazine. [7] An optional 25-round box magazine is also available. [8]
Nearly 100 years after the .276 Pedersen introduced the concept of a 7mm infantry round for semi-automatic rifles, on April 19, 2022, the United States Army adopted the .277 Fury (6.8x51mm Common) as the United States Army's general-purpose cartridge, this cartridge features a 7.04 mm bullet in a two-part version of a necked down 7.62x51mm NATO ...