The .45 Schofield is a revolver cartridge developed by Smith & Wesson for their Model-3 American break-top revolver. It is similar to the .45 Colt round though shorter and with a slightly larger rim, and will generally work in revolvers chambered for that cartridge. A small number of the revolvers were purchased by the United States Army in 1875. But due to it's lesser power compaired to the Colt .45 it was never adopted as the official sidearm of the Army. The Colt Single Action Army, one of the most popular revolvers of all time A revolver is a multishot firearm, usually a handgun, in which the rounds are held in a revolving cylinder that rotates to fire them through a single barrel. ... A Modern Smith & Wesson Revolver (Model 629) Smith & Wesson is Americas largest manufacturer of handguns, located in Springfield, Massachusetts. ... The . ...