Ammunition, in particular of the telescoped type

A telescoped ammunition round, comprising:

• a plastic case comprising a plastic cylindrical casing, a plastic front end cap comprising a ring slidably engaged at a front end of the casing, and a plastic rear end cap comprising a base slidably engaged at a rear end of the casing;
• a projectile disposed within said casing;
• a propellant charge disposed within said casing;
• an ignition device disposed within said casing for igniting said propellant charge;
• a sealing means for providing a gas-tight seal between said front end cap and said casing and between said rear end cap and said casing, said sealing means comprising a first annular seal extending from one end of the ring of the front end cap, said first annular seal comprising a lip press-fitted against an internal surface of said casing, and a second annular seal extending from one end of the base of said rear end cap, said second annular seal comprising a lip press-fitted against an internal surface of said casing;
• and
• axial retaining means for preventing longitudinal axial movement of said front and rear end caps before ignition of said propellant charge and for allowing axial movement of front and rear end caps after ignition of said propellant charge, wherein said front and rear end caps are not completely separated from said casing after ignition of said propellant charge, said axial retaining means selected from the group consisting of a deformable means and a shearable means, said axial retaining means comprising first and second retaining devices provided in addition to the front and rear end caps and the casing, said first retaining device being secured between said front end cap and said casing, said second retaining device being secured between said rear end cap and said casing.