High Quality Content by WIKIPEDIA articles! An auto-loader or autoloader is a mechanical aid or replacement for the personnel that load ordnance into crew-served weapons, such as tanks and artillery. The term is generally only applied to larger weapons that would otherwise have a dedicated person or persons loading them; the mechanism that automatically loads automatic weapons is not considered an auto-loader. An auto-loader, as its name suggests, extracts a shell and propellant charge from a magazine, loads it into the chamber of the gun, and closes the breech. It can and often does replace the loader. Theoretically, by automating the loading process, it should streamline and speed up the loading process, resulting in a more effective fighting machine.