Patent ID: 8857343
Filing Date: 2014-10-14
Classification: F42B

Abstract:
1. A projectile, comprising: a head, a tail, and an interface that interconnects said head and said tail; a diameter-reducing annular step of predetermined depth formed in said head; said interface having an open leading end, a closed trailing end, an exterior surface, and a cavity defined by an interior surface; a diameter-increasing annular step formed in said interior surface of said interface, said diameter-increasing annular step increasing the diameter of said cavity; said diameter-increasing annular step creating an annular space between a predetermined extent of said tail and said interface; said exterior surface of said interface having a leading end, a trailing end, a mid-section, and a trailing section that extends from said trailing end to said mid-section and which gradually increases in diameter; an annular obturation region formed where said trailing section and said mid-section merge with one another; said leading end of said interface abutting said diameter-reducing annular step formed in said head, said leading end of said interface having a thickness equal to said predetermined depth of said diameter-reducing annular step, an exterior surface of said head and an exterior surface of said interface being flush with one another; an annular ridge of predetermined height and extent formed in a trailing end of said head; an annular recess of predetermined depth and extent formed in said head in leading relation to said annular ridge; said annular recess having a first, truncate part having a longitudinal extent about the same extent as the longitudinal extent of said annular ridge; and said annular recess having a second, elongate part that extends from a leading end of said first, truncate part to said diameter-reducing annular step formed in said head.