Patent ID: 7543535

Claim:
Bullet for a hunting rifle, comprising: a) a jacket made of a lead-free, ductile material, including red brass, copper, or brass, the jacket including a wall thickness; b) a core physically connected to the jacket and made of a material softer than that of the jacket, including lead, a lead-tin alloy, or a lead-free bismuth alloy; c) a thinly jacketed bullet head; d) a tail section, the tail section being thicker walled than the thinly jacketed bullet head; and e) at a portion of the jacket where the bullet head meets the thicker-walled tail section the rifle bullet includes both a prominent sharp edge extending outwardly thereof and increasing the wall thickness of the jacket and, inwardly thereof, a circumferential groove reducing the wall thickness of the jacket and filled with the material of the core.