Caseless ammunition comprises a shell, a propellant (solid, liquid, gas) of flammable material which is placed in a chamber of the shell, and an igniter block, wherein the body of the shell is made with a cylindrical part, which passes into an inclined surface of a leading cylindrical part, which passes into a rear cylindrical part, herewith:
- said inclined surface is made at an angle (d27) 30°-45° to a longitudinal axis of the body of the shell;
- said leading cylindrical part is made with a wall thickness;
- the wall thickness of the leading cylindrical part is 0.122D, where D is an outside diameter of the ammunition;
- said rear cylindrical part is made with a smaller diameter than a diameter of the leading cylindrical part;
- between the leading cylindrical part and the rear cylindrical part a ledge is made;
- the rear cylindrical part ends with a chamfer;
- an inlet interior cylindrical hole is made in the body of the shell, into which the igniter block is installed.