The 5mm Clement is a centerfire cartridge produced for early self-loading pocket pistols made Charola-Anitua and a 1903 design by Clement. The steeply conical, bottle-necked case is semi-rimmed, but headspaces on the shoulder of the case. The long bullet was inadequately stabilized and tended to tumble in flight. The Charola-Anitua pistol was produced in very limited numbers, and Clement pistol production shifted to the .25 ACP

.25 ACP

The .25 ACP centerfire pistol cartridge is a semi-rimmed, straight-walled pistol cartridge introduced by John Browning in 1905 alongside the Fabrique Nationale model 1905 pistol...

cartridge after 1906.