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''Not to be confused with the 1873 pattern'' Colt Single Action Army. The Colt Army Model 1860 is a muzzle-loaded cap & ball .44-caliber revolver used during the American Civil War made by Colt's Manufacturing Company. It was used as a side arm by cavalry, infantry, artillery troops, and naval forces. == History == The Colt 1860 Army uses the same size frame as the .36 caliber 1851 Navy revolver. The frame is relieved to allow the use of a rebated cylinder that enables the Army to be chambered in .44 caliber. The barrel on the 1860 Army has a forcing cone that is visibly shorter than that of the 1851 Navy, allowing the Army revolver to have a longer cylinder. Another distinguishing feature of the Colt 1860 Army, first introduced on the Colt 1855 Sidehammer Revolver, is the "creeping" loading lever. More than 200,000 were manufactured from 1860 through 1873. Colt's biggest customer was the US Government with no less than 129,730〔Hogg, Ian V. Weapons of the Civil War. New York: Military, 1987. Print.〕 units being purchased and issued to the troops. The weapon was a single-action, six-shot weapon accurate up to 75 to 100 yards, where the fixed sights were typically set when manufactured. The rear sight was a notch in the hammer, only usable when the revolver was fully cocked. The Colt .44-caliber “Army" Model was the most widely used revolver of the Civil War. It had a six-shot, rotating cylinder, and fired a round spherical lead ball, or a conical-tipped bullet, typically propelled by a 30-grain charge of black powder, which was ignited by a small copper percussion cap that contained a volatile charge of fulminate of mercury (a substance that explodes upon being subjected to a sharp impact). The percussion cap, when struck by the hammer, ignited the powder charge. When fired, balls had a muzzle velocity of about 900 feet per second (274 meters/second), although this depended on how much powder one loaded it with. The unfluted cylinder was "rebated", meaning that the rear of the cylinder was turned to a smaller diameter than the front. The barrel was rounded and smoothed into the frame, as was the Navy Model. The frame, hammer, and rammer lever were case-hardened, the remainder blued; grips were of one-piece walnut; and the trigger guard and front grip strap were of brass while the backstrap was blued."〔 A distinguishing feature of the Model 1860 was that its frame had no top strap, or no component running above the cylinder. Instead, its strength came from the lower frame and the massive fixed cylinder pin. This made the gun slimmer and lighter than its main competitor, the Remington Model 1858, but with a possible loss of strength. The fixed cylinder pin also meant that the barrel had to be removed in order to remove the cylinder, unlike the Model 1858, which only required you to remove the cylinder retaining pin. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Colt Army Model 1860」の詳細全文を読む スポンサード リンク
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