Patent ID: 7765934

Claim:
A small-bore projectile having an ogival or conical front region, a cylindrical central part and a conically extending tail region, further comprising: an outer jacket of a copper/zinc alloy, the jacket having a tip and fully enclosing a hollow space; a hard core made of steel or a sintered material inserted into the hollow space towards the tip and having a outwardly projecting conical rear face tapering to a point; a jacket core made of a copper/zinc alloy having a front face attached with a form fit to a rear of the hard core; the jacket core front face being inwardly conical and having a surface portion positively resting against a corresponding portion of the conical rear face of the hard core and sealing said hard core to the front face, a single interior cylindrical hollow space being present within the jacket core extending downwardly from said front face a majority length of the jacket core and with a sidewall of the hollow space being bounded by the jacket core and a top being bounded by the point portion of the rear face of the hard core; and the jacket core being in contact on a periphery over its entire length with at least the tail region of the jacket and being held with an interference fit; the projectile being entirely lead-free.