Patent ID: 7900561

Claim:
A projectile, comprising: a leading part formed by a tip having a generally ogive shape; a tip base of cylindrical construction having a reduced diameter relative to a trailing end of said tip so that a first annular shoulder is formed where said trailing end of said tip meets a leading end of said tip base; a leading rod formed integrally with said tip base and having a reduced diameter relative to said tip base so that a second annular shoulder is formed where a trailing end of said tip base meets a leading end of said leading rod; a trailing part formed by a main base; a truncate base of cylindrical construction formed integrally with a leading end of said main base and having a reduced diameter relative to said leading end of said main base so that a third annular shoulder is formed where said leading end of main base meets said trailing end of said truncate base; a trailing rod formed integrally with a leading end of said truncate base and having a reduced diameter relative to said truncate base so that a fourth annular shoulder is formed where said leading end of said truncate base meets said trailing end of said trailing rod; a cylindrical interface including a leading end that abuttingly engages said first annular shoulder and a trailing end that abuttingly engages said third annular shoulder; said leading end of said cylindrical interface supported by said tip base and said trailing end of said cylindrical interface supported by said truncate base; a medial extent of said cylindrical interface between said leading end and said trailing end being unsupported by said leading rod and said trailing rod; said medial extent being deformed radially inwardly by lands in a barrel when said projectile is fired from said barrel; whereby the leading and trailing ends of said cylindrical interface maintain contact with said lands and said medial extent does not, thereby reducing friction between said projectile and said barrel without sacrificing spin of said projectile.