9 x 18 Makarov

The 9x18mm Makarov or 9mm Makarov cartridge is a soviet pistol and submachine gun cartridge designed in 1946 and was intended to be relatively powerful for use in a simple blowback pistol. The Makarov pistol was designed around the cartridge in 1947, the acceptance of both the pistol and the cartridge itself caused the cartridge to become commonly known as 9mm Makarov.