Patent ID: 6305292
Filing Date: 2001-10-23
Classification: F42B

Abstract:
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 sidewall, a nose portion disposed forwardly of said cylindrical sidewall, 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 polymeric core disposed in part at least within said nose-defining wall and against said closed forward end, said polymeric core having a hardness or durometer within a range of Shore A20-Rockwell R-122;(e) a metal core seated behind said polymeric core and within said generally cylindrical sidewall in close-fitting relation and extending rearwardly to a position adjacent said rear end portion of said generally cylindrical jacket sidewall;(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 polymeric core.