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The .45 Colt (11.43×33mmR), often called the .45 Long Colt, is a rimmed straight-walled handgun cartridge dating to 1872.It was originally a black-powder revolver round developed for the Colt Single Action Army revolver.
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 .45 ACP (Automatic Colt Pistol), also known as .45 Auto, .45 Automatic, or 11.43×23mm [1] is a rimless straight-walled handgun cartridge designed by John Moses Browning in 1904, for use in his prototype Colt semi-automatic pistol. After successful military trials, it was adopted as the standard chambering for Colt's M1911 pistol. [2]
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.
Colt Double Eagle: Colt Manufacturing Company.45 ACP 10mm Auto.40 S&W 9×19mm Parabellum.38 Super United States: 1985 Colt New Service: Colt Manufacturing Company.45 Colt.455 Webley.476 Enfield.45 ACP.44-40 Winchester.44 Special.38-40 Winchester.38 Special.357 Magnum United States: 1898 Colt Officer's ACP: Colt Manufacturing Company.45 ACP ...
This allowed the use of the .45 Colt cartridge. The load range for this cartridge was typically 28 to 40 grains of black powder. Thus, a Colt Walker revolver converted to shoot the .45 Colt cartridge is limited to a maximum of 40 grains, even though the revolver was originally designed to load up to 60 grains.
For comparison, Hornady's 9249 load for the .500 S&W Magnum cartridge offers slightly less energy at the muzzle, achieving 2,868 ft⋅lbf (3,888 J) by driving a 300 grain (19 g) FTX bullet at 2,075 ft/s (632 m/s). Buffalo Bore's loading for the .500 S&W cartridge offers much less energy at the muzzle, achieving only 2,579 ft⋅lbf (3,497 J) by ...
Manufacturers such as Heckler & Koch GmbH currently offer pistols rated to fire .45 Super "out of the box". [6] The Smith & Wesson Model 4506 and other models in the third generation 4500 series leave the factory with springs for the .45ACP, but feature full support for the .45 Super load when upgraded with a stronger spring. Although they will ...