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The .450 Bushmaster is descended from the Thumper concept popularized by the gun writer Jeff Cooper.Cooper was dissatisfied with the small-diameter 5.56×45mm NATO (.223 Remington) of the AR-15, and envisioned a need for a large bore (.44 cal or greater) cartridge in a semi-automatic rifle to provide one-shot kills on big-game animals at 250 yards.
Common rifle cartridges, from the largest .50 BMG to the smallest .22 Long Rifle with a $1 United States dollar bill in the background as a reference point.. This is a table of selected pistol/submachine gun and rifle/machine gun cartridges by common name.
450 Bushmaster : Uses .284 Winchester cases. Cut the length to 1.700" to form a straight-wall cartridge, from 2.170". Cut the length to 1.700" to form a straight-wall cartridge, from 2.170". The .284 Winchester case is very similar to the .308, however, the .284 case has a body diameter of 0.500", and the .308 case has a body diameter of 0.471".
[3] [4] At the cartridge's introduction, Winchester claimed that the .350 Legend was the fastest production straight-walled hunting cartridge in the world, although some .450 Bushmaster, .444 Marlin, and .458 Winchester Magnum loads are faster and have much more energy, [3] [5] and the .350 Legend would be surpassed in 2023 by the .360 ...
The 45 Raptor (11.5x46mm) is a rimless centerfire cartridge developed for the AR-10 semi-automatic rifle for medium and large game hunting. Compared to similar big bore cartridges designed for the AR-15 – such as the .450 Bushmaster, .458 SOCOM, and .50 Beowulf – the 45 Raptor offers higher velocity bullets, a flatter shooting trajectory and the ability to reliably feed hollow point ...
The Whisper family was developed as a line of accurate, multi-purpose cartridges using relatively heavy rifle bullets for a given caliber in subsonic loads. [1] [2] [3] The intention was to create an extremely accurate cartridge family for military, police, competition and specialized hunting markets that could also be easily sound suppressed.
The 12.7×55mm cartridge is used in some Russian firearms such as the VKS bullpup sniper rifle, the ShAK-12 bullpup battle rifle and the RSh-12 revolver.The cartridge can carry a projectile weighing between from 108 grains and 1173 grains and is predominantly used to fire heavy subsonic loads.
The .458 SOCOM (11.63×40mmRB) is a moderately large round designed to work in an AR-15 platform.This is achieved by installing a 458 bolt and barrel. The 300-grain (19 g) round offers a supersonic muzzle velocity of 1,900 ft/s (580 m/s) and 2,405 ft⋅lbf (3,261 J), [1] similar to a light .45-70 but with a much smaller case.