Rifle cartridge case

Claim 1

A CARTRIDGE CASE HAVING AN ELONGATED, GENERALLY CYLINDRICAL BODY DEFINING A CHARGE-RECEIVING CHAMBER THEREWITHIN, A FIRST GENERALLY FRUSTO-CONICALLY SHAPED SHOULDER INTEGRALLY FORMED WITH THE FORWARD END OF SAID BODY AND PROJECTING AXIALLY FORWARDLY THEREFROM, AN INTERMEDIATE GENERALLY CYLINDRICAL SHOULDER-CONNECTING PORTION OF SMALLER DIAMETER THAN SAID BODY AND BEING INTEGRALLY FORMED WITH SAID FIRST SHOULDER AND PROJECTING COAXIALLY FORWARDLY THEREFROM, A SECOND GENERALLY FRUSTO-CONICALLY SHAPED SHOULDER INTEGRALLY FORMED WITH SAID SHOULDER-CONNECTING PORTION AND DISPOSED IN COAXIAL RELATION THEREWITH AND PROJECTING FORWARDLY THEREFROM, SAID SHOULDERS HAVING AN AXIAL DIMESION OF APPROXIMATELY THE SAME SIZE AND SLIGHTLY LARGER THAN THE AXIAL DIMENSION OF SAID SHOULDER-CONNECTING PORTIONS, SAID SHOULDERS COOPERATING WITH EACH OTHER WHEN A CHARGE IS DETONATED WITHIN SAID CHAMBER TOI PRODUCE TURBULENCE OF THE BURNING CHARGE ADJACENT THE FORWARD END OF THE CHAMBER AND TO THEREBY CAUSE MORE COMPLETE BURNING OF THE CHARGE WITHIN THE CHAMBER. AND AN ELONGATE, GENERALLY CLYINDRICALLY SHAPED PROJECTILE-RECEIVING NECK OF SMALLER DIAMETER THAN SAID SHOULDER-CONNECTING PORTION AND INTEGRALLY FORMED WITH SAID SECOND SHOULDER AND PROJECTING AXIALLY FORWARDLY THEREFROM.