Solid copper hollow point bullet

• US 5,811,723 A
• Filed: 06/05/1997
• Issued: 09/22/1998
• Est. Priority Date: 06/05/1997
• Status: Expired due to Term

• Current Assignee: Ammunition Operations, LLC (Vista Outdoor Inc.)
• Original Assignee: Remington Arms Company Incorporated
• Inventors: Stone, Jeffrey W.
• Primary Examiner(s): TUDOR, HAROLD JAY
• Application Number:
  US08/869,690
• Time in Patent Office: 474 Days
• Field of Search: 102/439, 102/448, 102/501, 102/507-510, 102/520-523
• US Class Current: 102/509
• CPC Class Codes: F42B 12/34 expanding before or on impact, i.e. of dumdum or mushroom type

Abstract

A solid copper hollow point bullet is disclosed wherein the effective expansion is about two times the original diameter. Over expansion and curling under of the petals formed upon impact with a target media is minimized and controlled by external stress risers and hollow point cavity geometry.

Claims

1. In a non-jacketed, one-piece, solid copper hollow point bullet comprising a body having a base portion and a nose portion, the nose portion having a wall having at least a forward edge and the base portion having at least a forward surface and an outer surface, the improvement comprising a plurality of rearwardly projecting spaced slits, each slit having a forward and and a rearward end, extending through the wall from the forward edge, to form spaced petals having first and second edges at least one of the first and second edges extending inwardly from the wall, a plurality of grooves on the outside surface of the wall, each groove extending rearwardly from the rearward end of each slit toward the base portion and the forward surface having a substantially concave shape.

2. A bullet of claim 1 wherein the thickness of the wall increases from the opening toward the base portion.

3. A bullet of claim 1 further comprising a sabot.

4. A bullet of claim 3 wherein the bullet further comprises a ridge on the outer surface thereof and the sabot further comprises a rim on an inner surface thereof, the ridge and the rim forming an interlock.