The Colt M1878 is a double-action revolver that was manufactured by Colt's Manufacturing Company from 1878 until 1907. It is often referred to as the "Frontier" or the "Double Action Army" revolver, a
The.38 Long Colt, also known as.38 LC, is a black powder centerfire cartridge introduced by Colt's Manufacturing Company in 1875. In 1892, it was adopted as a standard military pistol cartridge by the
Diagram of .38 Long Colt U.S. Army "ball cartridge", with dimensions in inches.