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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.
In the classic division a choice can be made between up to a 10-shot capacity 1911 with minor scoring (e.g. 9×19mm) or up to an eight-shot capacity 1911 with major scoring (e.g. .40 S&W or .45 ACP). In the revolver division major scoring can be achieved with a 9 mm bullet diameter, but with a power factor of 170.
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.
.45 ACP Italy: 2004 BFD 1911: BFD .45 ACP United States: 2010s Bren Ten: Dornaus & Dixon Enterprises, Inc. 10mm Auto.45 ACP.22 Long Rifle United States: 1983 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 ...
Some ammunition types were inherently designed with heavier, slower standard bullet weights and velocities. For example, the traditional American military standard .45 ACP ammunition load of a 14.9 g (230 gr) bullet at 259 m/s (850 ft/s), is naturally subsonic.
[2] [3] It is dimensionally similar to the .45 ACP round but has a thicker case wall and is loaded to higher pressures, which offers an average 300 feet per second (91 m/s) improvement in muzzle velocity over the .45 ACP. [4] The cartridge was co-developed by Tom Fergerson and Ace Hindman. [5]
European models such as .32 S&W automatics from Walther, the now discontinued Smith & Wesson Model 52, and others are common, as are M1911 variants in smaller calibers, such as .32 ACP, .380 ACP, .38 Special, 9mm Parabellum, or .38 Super. One advantage of .45 caliber over .38 caliber is that the larger diameter hole made will be able cut a ...
The HK45C can use all magazines of the full-size HK45 and the USP Compact chambered in .45 ACP, including the flush 8-round magazines and the extended 10-round 'elephant foot' magazines. An HK45 Tactical (HK45T) and HK45 Compact Tactical (HK45CT) are also available; these variants include an extended threaded barrel for suppressors , and ...