Abstract: A self supporting ammunition cartridge which need not be inserted into a mber for firing, but is simply lined up with the aft end of the weapon's barrel and fired. The cartridge case is a hollow cylinder of composite non-metallic construction with a primer at its aft end and a projectile recessed into its forward end, with propellant filling the remainder of the hollow cylinder. The cartridge case is sufficiently strong to withstand the pressure of firing without being inserted into a firing chamber. The weapon for firing this cartridge comprises a gap equal in length to the cartridge where the chamber would be located.