Captive soft-point bullet
AssigneeFederal Cartridge Company
InventorThomas J. Burczynski
Life of this patent
Estimating the term…
Abstract
A bullet comprised of a jacket of malleable metal having a closed nose portion encapsulating a forward core made of rubber, the nose portion having circumferentially spaced, axially extending deep scores in its nose-defining walls, and a rear core within the jacket made of a malleable metal preferably softer than that of the jacket and hard-seated against the rear of the rubber core to bring pressure against the interior surface of the meplat and the interior surface of the nose-defining walls of the nose portion, whereby upon the bullet striking and penetrating a target, the scores will rupture and the nose-defining walls of the nose portion will collapse axially and open, and together with the rubber core, will expand substantially in a radial direction to thereby provide an adequate penetration, optimum expansion bullet.
Claims59
An adequate penetration, optimum expansion bullet for use against targets of soft to medium-hardness comprising:
- (a) a jacket formed of a malleable metal and having a generally cylindrical side wall, a nose portion disposed forwardly of said cylindrical side wall, a closed forward end, and a rear end portion;
- (b) said nose portion having a nose-defining wall extending between said cylindrical wall and said closed forward end;
- (c) said nose-defining wall having circumferentially spaced wall-weakening scores formed therein and extending axially of said nose portion;
- (d) a soft rubber core disposed in part at least within said nose-defining wall and against said closed forward end;
- (e) a malleable metal core seated behind said soft rubber core and within said generally cylindrical side wall in close-fitting relation and extending rearwardly to a position adjacent said rear end portion of said generally cylindrical side wall;
- (f) said nose-defining wall being weakened by said scores sufficiently to cause said nose-defining wall, upon the bullet striking and penetrating a target, to rupture along said scores and thereafter to expand substantially in a radial direction, together with said soft rubber core.
An adequate penetration, optimum expansion bullet for use against targets of soft to medium-hardness comprising:
- (a) a jacket formed of a malleable metal and having a generally cylindrical side wall, a nose portion disposed forwardly of said cylindrical side wall, a closed forward end, and a rear end portion;
- (b) said nose portion having a nose-defining wall extending between said cylindrical wall and said closed forward end;
- (c) said nose-defining wall having circumferentially spaced weakened areas therein subject to rupture thereat by internal pressures created when the bullet strikes a target;
- (d) a soft rubber core disposed in part at least within said nose-defining wall adjacent said weakened areas and occupying at least a substantial portion of the interior of said nose portion;
- (e) a malleable metal core seated behind said rubber core within said generally cylindrical wall and arranged in pressure-bearing relation with said closed forward end through said rubber core;
- (f) said weakened areas being weakened sufficiently to cause said rubber core, upon the bullet striking and penetrating a target, to rupture at least some of said weakened areas, and thereafter, together with said ruptured weakened areas, to expand substantially in a radial direction.
An adequate penetration, optimum expansion bullet for use against targets of soft to medium-hardness comprising:
- (a) a jacket formed of a malleable metal and having a generally cylindrical side wall, a nose portion disposed forwardly of said cylindrical side wall, a closed forward end, and a rear end portion;
- (b) said nose portion having a nose-defining wall extending between said cylindrical wall and said closed forward end;
- (c) said nose-defining wall having circumferentially spaced, longitudinally extending weakened areas subject to rupture thereat by internal pressures created when the bullet strikes and penetrates a target;
- (d) a soft rubber core disposed, in part at least, within said nose-defining wall adjacent said weakened areas and occupying at least a substantial portion of the interior of said nose portion;
- (e) a malleable metal core hard-seated behind said rubber core within said generally cylindrical wall in close-fitting relation and constructed and arranged in pressure-bearing relation against said rubber core and against said closed end through said rubber core;
- (f) said weakened areas being weakened sufficiently to cause said rubber core, upon the bullet striking and penetrating a target, to rupture at least some of the weakened areas, and thereafter, together with said weakened areas, to expand to a substantial extent in a radial direction.
An adequate penetration, optimum expansion bullet for use against targets of soft to medium hardness comprising:
- (a) a jacket formed of a malleable metal and having a generally cylindrical side wall, a nose portion disposed forwardly of said cylindrical side wall, a closed forward end, and a rear end portion;
- (b) said nose portion having a nose-defining wall extending between said cylindrical wall and said closed forward end;
- (c) said nose-defining wall having circumferentially spaced weakened areas subject to rupture thereat by internal pressures created when the bullet strikes and penetrates a target;
- (d) a soft rubber core disposed in part at least within said nose-defining wall adjacent said weakened areas and occupying at least a substantial portion of the interior of said nose portion;
- (e) a malleable metal core firmly seated within said generally cylindrical wall behind said rubber core and confining at least a substantial portion of said rubber core within the interior of said nose portion;
- (f) said weakened areas being weakened sufficiently to cause said rubber core, upon the bullet striking and penetrating a target, to rupture at least some of said weakened areas and thereafter, together with said weakened areas, to expand to a substantial extent in a radial direction.
Dependencies are inferred from the claim text.