The specific measurements of a cartridge designed for the .45 Colt revolver are critical for safe and reliable function. These specifications include the overall length, case length, base diameter, neck diameter, shoulder angle, and rim thickness. A typical cartridge, for example, might have a case length of 1.285 inches. Understanding these measurements ensures proper chambering, firing, and extraction of the round within the firearm.
Accurate cartridge dimensions are fundamental to the performance and safety of the .45 Colt. Historically, variations in manufacturing tolerances could lead to issues such as misfires or potentially dangerous overpressure situations. Modern manufacturing processes have significantly improved consistency, but understanding these measurements remains essential, especially for those loading their own ammunition. Proper dimensions ensure compatibility with reloading dies and tools, contributing to efficient and consistent handloads. This attention to detail promotes safety and optimal ballistic performance.