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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.
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]
Colt had previously produced a version of their .45 Colt caliber New Service model, designated the M1909, to replace their .38 Long Colt caliber M1892 revolvers that had demonstrated inadequate stopping power during the Philippine–American War. The Colt M1917 Revolver was essentially the same as the M1909, but with a cylinder bored to take ...
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, and Automatic Pistol, Caliber .45, M1911A1 for the improved M1911A1 model which entered service in 1926. The designation changed to Pistol, Caliber .45, Automatic, M1911A1 in the Vietnam War era. [10]
The first test production at Kongsberg Våpenfabrikk in Norway occurred in 1917 and 95 pistols were finished and wrongly stamped "COLT AUT. PISTOL M/1912" . [ 3 ] These pistols were identical to the Colt M1911 except for a minor detail on the hammer checkering. 100 pistols were ordered, but 5 were rejected during production.
The Luger on the other hand would be developed at about the same pace as the Colt 1902, the competition peaking in 1907 when .45 ACP Colt 1905's and 45 ACP Lugers faced off, although in the end both pistols showed insufficient promise in the heavier caliber, and as the United States was committed to the .45 ACP, the basic 1902 design stayed ...
Pages in category "Colt semi-automatic pistols" The following 18 pages are in this category, out of 18 total. ... D. Colt Double Eagle; M. M1911 pistol; W. Colt Woodsman
The AMT Hardballer is a series of pistols that are part of the 1911 platform (based on the .45 ACP M1911) made by Arcadia Machine & Tool (AMT) from 1977 to 2002. [1] The Hardballer was the first entirely stainless steel 1911 pattern pistol. [2] Other features included adjustable rear sights and a lengthened grip safety. [3]