Explosive confinement ring

Claim 1

IN A PROJECTILE FOR USE IN A RECOILLESS GUN AND OF THE TYPE ADAPTED FOR RECEIVING AND FIRING A SHAPED CHARGE EXPLOSIVE, SAID PROJECTILE COMPRISING A HOLLOW ALUMINUM BODY HAVING AN AOUTER WALL OF OUTSIDE UNIFORM DIAMETER AND OF VARYING THICKNES TAPERING FORWARDLY TO A MINIMUM THICKNESS, THENCE EXTENDING FORWARD UNIFORMLY, A SHAPED CHARGE EXPLOSIVE CONTAINED BY SAID ALUMINUM BODY, A COPPER CONE WITHIN SAID SHAPED CHARGE EXPLOSIVE AND INTERSECTING SAID BODY, THE COMBINATION THEREWITH OF THE IMPROVEMENT FOR INCREASING THE PENETRATING ABILITY OF SAID PROJECTILE COMPRISING A TUNGSTEN WIRE OF RECTANGULAR CROSS-SECTION CARRIED BY SAID BODY WALL WITHIN THE OUTSIDE DIAMETER THEREOF AND LYING THEREIN TO A DEPTH OF AOBUT HALF THE THICKNESS OF THE BODY WALL, SAID TUNGSTEN WIRE HAVING AN AXIAL LENGTH OF APPROIXIMATELY ONE-FIFTH OF THE OUTSIDE DIAMETER OF THE PROJECTILE, AND SAID TUNGSTEN WIRE BEING LOCATED IN REAR OF THE INTERSECTION OF SAID COPPER CONE AND SAID BODY FOR A DISTANCE OF ABOUT 15% TO 30% OF THE AXIAL LENGTH OF SAID CONE.