Abstract: A ballistic weapon is disclosed having a barrel with a forward end to which a barrel extender is secured. The barrel extender includes a cylindrical outer body portion, a forward ring-like portion and a rearward wall portion, which together define a forward chamber in communication with the bore of the barrel of the weapon. A plurality of apertures extend through the rearward wall portion and are angularly spaced equidistances apart around a central longitudinal axis of the bore of the barrel. The apertures define central axes which are substantially parallel to the central longitudinal axis of the bore of the barrel. The apertures connect the forward chamber to an interior annular space extending between the exterior of the barrel and a perforated shroud extending exteriorly around the barrel.

Abstract: A cartridge is disclosed for use in a ballistic weapon system. The cartridge includes a tubular case and a ballistic projectile. The projectile has an annular groove which extends into an exterior periphery of the projectile. The tubular case has a cylindrical sidewall and a substantially closed rearward end. The cylindrical sidewall defines an interior cavity for receiving at least a rearward portion of the projectile. An annular lug is integrally formed with the cylindrical sidewall and inwardly extends from the sidewall into the annular groove of the projectile, interlocking the projectile and the tubular case. Longitudinal slits are formed in the forward end of the tubular case to allow the case to expand for receipt of the projectile until the annular lug is aligned with and then inserted into the annular groove of the projectile.