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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.
45 Raptor, uses the standard 7.62 NATO case, cut to a length of 1.800" from 2.015", resulting in a straight-wall cartridge, neck is sized to 0.452". The resulting COAL of 2.300" is only 1.02 mm longer than the maximum COAL for chambering a cartridge in the smaller AR-15; however, the 45 Raptor chamber pressure is allowed to be as high as 62,000 ...
Earlier models were listed as .44 caliber, later as .45, but all use a .457" round ball or .454" conical lead bullet. [3] The Ruger Old Army can also shoot modern smokeless cartridges in .45 Colt (.45 Long Colt), or .45 ACP loaded for "cowboy action" muzzle velocities less than about 850 feet per second, via use of a drop-in conversion cylinder ...
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.
The .38 Long Colt remained the Army's primary revolver cartridge until 1909, when the .45 M1909 cartridge [b] was issued along with the .45 Colt New Service revolver as the new standard military sidearm for the U.S. Army. However, some of the old .38 Long Colt revolvers and ammunition remained in reserve stocks, and when the U.S. entered World ...
In 1875, the U.S. Ordnance Board granted S&W a contract to outfit the military with Model 3 revolvers incorporating the design improvements of Major George W. Schofield (the so-called "Schofield revolvers"), providing that they could make the revolvers fire the .45 Colt (or ".45 Long Colt") ammunition
This allowed the use of the .45 Colt cartridge. The load range for this cartridge was typically 28 to 40 grains of black powder. Thus, a Colt Walker revolver converted to shoot the .45 Colt cartridge is limited to a maximum of 40 grains, even though the revolver was originally designed to load up to 60 grains.
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.