A projectileless ammunition system (20; 320) includes a metallic case (22;
322). A propellant charge (26; 326) is carried by the case and cover by an
over-powder member (24; 324) in the absence of a separate projectile. The
ammunition is advantageously used with an industrial ballistic tool
operating so that each spent case serves as the effective projectile to be
propelled by firing of the next round of ammunition.