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The .220 Swift (5.56×56mmSR) is a semi-rimmed rifle cartridge developed by Winchester and introduced in 1935 for small game and varmint hunting. It was the first factory-loaded rifle cartridge with a muzzle velocity of over 1,200 m/s (4,000 ft/s).
Other cartridges were derived from re-forming an existing case and possibly trimming the length in order to arrive at a case-shape that meets the standardized SAAMI-spec dimensions. AR-15: 22 Nosler : Proprietary, uses the head and rim dimensions of the 5.56x45, and a case-body that is similar to the 6.8 SPC case. To increase powder capacity ...
.220 Russian.220 Rook.220 Swift.221 Remington Fireball.22 Nosler.22-250 Remington.222 Remington.222 Remington Magnum.222 Rimmed.223 Remington.223 Winchester Super Short Magnum.224 Voboril.224 Boz.224 Weatherby Magnum.224 Valkyrie.225 Winchester.297/230 Morris.240 Apex.240 Weatherby Magnum.242 Rimless Nitro Express.243 Winchester
This cartridge is also sometimes known as the .22 Varminter or the .22 Wotkyns Original Swift. [2] Along with the .220 Swift, the .22-250 was one of the high-velocity .22 caliber cartridges that developed a reputation for remote wounding effects known as hydrostatic shock in the late 1930s and early 1940s. [3] [4]
Based on the .219 Zipper case but with a reduced rim diameter [2] to fit the common .473" bolt face, it was intended as a replacement for the .220 Swift cartridge which had a reputation for burning out barrels.
The 6mm Lee Navy (6×60mmSR), also known as the 6mm U.S.N. [1] or .236 Navy, [2] is an obsolete American rifle cartridge. [3] It was the service cartridge of the United States Navy and Marine Corps from 1895 (therefore replacing the .45-70 Government rifle cartridge) to 1899, when it was then itself replaced by the more modern .30-40 Krag rifle cartridge.
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.
The larger case capacity means that handloaders can produce 50-grain loads that, with velocities in excess of 4,100 ft/s (1,200 m/s), will outpace anything that can safely be achieved by the Swift. The .223 Winchester Super Short Magnum is a 21st-century cartridge that is comparable to the 5.6×57 mm. [ 2 ]