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The .44 Auto Magnum Pistol (AMP) is a large-caliber, semi-automatic pistol cartridge developed in 1971 by Harry Sanford. [2] The primary use is in the Auto Mag Pistol . [ 3 ] The cartridge was also employed in the Wildey automatic pistol, including a few other custom pistols. [ 4 ]
It is similar to the .44 AMP, but is necked down to accept the smaller diameter bullet. The same is true for the .41 JMP, .30 LMP, .25 LMP, and .22 LMP. [2] Presently, loaded ammunition is available from Cor-Bon as well as SBR Ammunition, [11] and new .44 AMP brass is available from Starline Brass.
Despite the ".44" designation, guns chambered for the .44 Magnum round, its parent case, the .44 Special, and the .44 Special's parent case, the .44 Russian all use 0.429 in (10.9 mm) diameter bullets. [3] The .44 Magnum is based on the .44 Special case but lengthened and loaded to higher pressures for greater velocity and energy.
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.
Although not originally designed for handguns, several rifle and shotgun cartridges have also been chambered in a number of large handguns, primarily in revolvers like the Phelps Heritage revolver, Century Arms revolver, Thompson/Centre Contender break-open pistol, Magnum Research BFR, and the Pfeifer Zeliska revolvers.
The Wildey is a gas-operated, double- or single-action pistol designed by Wildey J. Moore. It was designed to fire several high-pressure proprietary cartridges including the .45 Winchester Magnum and the .475 Wildey Magnum.
The .454 Casull generates almost five times the recoil of the .45 Colt, and about 75% more recoil energy than the .44 Magnum. [6] It can deliver a 250 grain (16 g) bullet with a muzzle velocity of over 1,900 feet per second (580 m/s), developing up to 2,000 ft-lb (2.7 kJ ) of energy from a handgun.
The .460 Rowland / 11.43×24mm is a rimless, straight walled handgun cartridge designed in 1997 [1] by Johnny Rowland and developed in conjunction with Clark Custom Guns as a derivative of the .45 ACP [2] with the goal of producing a cartridge which can achieve true .44 Magnum [3] ballistic performance and be fired from a semi-automatic platform.