40 mm low cost cartridge

Practice cartridge round, comprising projectile including a projectile body and a projectile tip, and a cartridge shell into which the projectile is inserted, and that possesses a propulsion chamber, a pyrotechnic propulsive charge, and a pyrotechnic igniter for the propulsive charge, whereby the round may be used in a long-barrel weapon, and whereby the projectile is propelled out of the cartridge shell upon ignition of the propulsive charge by means of pressure buildup within the propulsion chamber, the improvement wherein the projectile includes a one-piece cylindrical central body and a one-piece basin-shaped projectile tip that is provided with a spring-elastic collar with a first engagement element surrounding the outer edge and facing inward so that, when the projectile tip is pressed onto the central body, the first engagement element engages a circumferential engagement bead with a circumferential engagement slot located in the central body;

• wherein the cartridge shell is a one-piece basin-shaped part whose open end transforms into a collar that includes a first surrounding engagement element at its open end that engages with a circumferential engagement slot of the central body, and wherein an approximately cylindrical projection projects inward from the base of the cartridge shell, in which a receiver recess is provided for the propulsive charge and for an igniter device, whereby the projectile is provided with an exhaust aperture (26) that ends beneath the base of the central body.