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The Colt M1911 (also known as 1911, Colt 1911 or Colt Government in the case of Colt -produced models) is a single-action, recoil-operated, semi-automatic pistol chambered for the .45 ACP cartridge. [9] The pistol's formal U.S. military designation as of 1940 was Automatic Pistol, Caliber .45, M1911 for the original model adopted in March 1911 ...
The .45 Colt at that time did not enjoy the .44-40's advantage of a Winchester rifle chambered for it being available, thus allowing the use of the same cartridge in both a pistol and a rifle. [7] According to rumor at the time, this was owing to early .45 Colt cartridges having a very narrow rim and causing ejection issues from a rifle chamber.
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]
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.
Action. double-action revolver. Feed system. 6-round cylinder. Sights. fixed blade front, notch rear. The Colt New Service is a large frame, large caliber, double-action revolver made by Colt from 1898 until 1941. Made in various calibers, the .45 Colt version with a 5½" barrel, was adopted by the U.S. Armed Forces as the Model 1909. [1]
7-round or 8-round (.45 ACP) 9-round (9 mm and .38 Super) The Colt Commander is a single-action, semi-automatic, magazine-fed, and recoil-operated handgun based on the John M. Browning –designed M1911. It was the first mass-produced American pistol with an aluminium alloy frame and the first Colt pistol to be chambered in 9mm Parabellum.
The Colt Model 1910 was a prototype .45 ACP caliber automatic pistol developed by John Browning as an improvement of the earlier Colt Model 1909, which was rejected by the United States Department of War due to the Cavalry's belief that the design was too complicated for use by enlisted men, and because it lacked a safety mechanism.
Feed system. 6 round or 7 round magazine. The Colt Officer's Model or Colt Officer's ACP is a single-action, semi-automatic, magazine-fed, and recoil-operated handgun based on the John M. Browning designed M1911. It was introduced in 1985 as a response from Colt to numerous aftermarket companies making smaller versions of the M1911 pistol.