A cartridge ammunition, in particular grenade ammunition, is provided that includes a projectile and a propellant charge case for accommodating the projectile and a propulsion, having a high pressure chamber and a low pressure champer, wherein the projectile and the propellant charge case are fastened to one another by way of a connection. The connection includes a membrane having at least one target braking point/opening point, which opens at a predetermined pressure in the high pressure chamber of the propulsion.