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Cross-sectional diagram of U.S. Army .45 ACP ball cartridge for the Model 1911 pistol, with dimensions in inches. During the late 19th century and early 20th centuries, the United States Cavalry began trials to replace their sidearm arsenal of issued Single Action Army (SAA) in favor of the more modern and versatile double-action revolver in ...
It is essentially a .45 ACP case, necked down to .357, resulting in a cartridge similar in form to the earlier 7.65×21mm Parabellum and 7.63×25mm Mauser cartridges. It was created to be a low recoil target cartridge that would function reliably with multiple bullet types, FMJ to cast lead wadcutters without the feeding problems that straight walled pistol rounds sometimes exhibit. [2]
The program looked to replace the entire handgun system, which includes the gun, ammo, holster, and some other parts. Owing to the poor reception of the 9mm NATO cartridge in combat zones like Iraq and Afghanistan, the program was an open-caliber competition to evaluate larger rounds like the .40 S&W and .45 ACP or more powerful rounds like the ...
Plus, one retains the versatility of easily switching back to .45 ACP whenever you desire. As Gun & Ammo wrote, The .400 Cor-Bon is one of the more useful of the current crop of .45 ACP offspring. There are faster rounds, but the .400 Cor-Bon is simply easy to get along with.
The round has a rebated rim that is the same diameter as that of the .45 ACP. [1] [2] In 2006, Guncrafter Industries introduced its 1911 Model No. 2, which sports a full-length light rail/dust cover and is chambered for the .50 GI cartridge. Both the M1 and the M2 can be fitted with Guncrafter Industries' .45 ACP conversion unit.
.45 ACP: The standard US pistol round for about 75 years. Typical .45 ACP loads are subsonic. [54].45 Colt: a more powerful 45-calibre revolver round using a longer cartridge. The .45 Colt was designed for the Colt Single Action Army and adopted by the US Army in 1873. Other 45-calibre single-action and double-action revolvers also use this round.
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That meant that users of the 9×23mm Winchester were able to return to target in less time than with a compensated .45 ACP pistol of otherwise identical design. Since speed was a major element in the scoring system within IPSC competitions, there was an obvious advantage to the 9×23mm Winchester over the .45 ACP.