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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.
The .45 ACP (not to be confused with .45 Colt) cartridge is a very popular caliber due to its low velocity and relatively high stopping power. This caliber is associated most with the Colt M1911, logically, as ACP literally means 'Automatic Colt Pistol'. However, there are many more guns and variations on the M1911 that are chambered in .45 ACP.
Below is a list of rimmed cartridges (R). Although similar, it must be noted that rimmed cartridges differ from rimfire cartridges ( list ). A rimmed cartridge is a cartridge with a rim, whose primer is located in the center of the case head; the primer is detonated by the firing pin striking that center location.
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.
This is a list of firearm cartridges which have bullets in the 11 millimetres (0.43 in) to 11.99 millimetres (0.472 in) caliber range.. Length refers to the cartridge case length
The .45 Schofield cartridge was shorter than the .45 Colt. It could be used in both the Schofield and the Colt 45 Peacemaker, but the .45 Colt was too long to use in the Schofield. As a result, by the late 1880s the army finally standardized on a .45 cartridge designed to fire in both revolvers, the M1887 Military Ball Cartridge.
Colt had been working with Browning on a .41 caliber cartridge in 1904, and in 1905, when the Cavalry asked for a .45-caliber equivalent, Colt modified the pistol design to fire an enlarged version of the prototype .41 round. The result from Colt was the Model 1905 and the new .45 ACP cartridge.
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 ...