Lead-free bullet for hunting

• US 4,685,397 A
• Filed: 03/12/1986
• Issued: 08/11/1987
• Est. Priority Date: 03/22/1985
• Status: Expired due to Term

• Current Assignee: Hans-Ludwig Schirneker
• Original Assignee: Hans-Ludwig Schirneker
• Inventors: Schirneker, Hans-Ludwig
• Primary Examiner(s): TUDOR, HAROLD JAY
• Application Number:
  US06/839,117
• Time in Patent Office: 517 Days
• Field of Search: 102/501, 102/507-510, 102/514-519
• US Class Current: 102/510
• CPC Class Codes: F42B 12/34 expanding before or on impact, i.e. of dumdum or mushroom type

Abstract

There is disclosed a lead-free and plastics-free hunting bullet, preferably made of tombac, in which on impact with a target a cap, which is provided with wedge-shaped projections, is forced rapidly rearwards within the bullet so that the projections rupture the wall of the bullet internally with the results that uniformly distributed tongues or petals are formed within the target. The bullet maintains its overall weight on passage through the body of an animal and no lead or plastics material can be become transferred to the body.

Claims

1. An improved two-piece, mushrooming petal bullet for use in hunting, consisting of

(1)

(a) a solid shot body made of tombac, or copper having a forwardmost nose portion and a horizontal axis;

(b) said nose portion including a cylindrical internal wall forming a blind passage extending rearwardly within said body along said axis and including an internal wall, said passage having a uniform diameter and being substantially cylindrical over its entire length free of prefabricated notches or grooves; and

(2)

(a) a solid body cap having a generally cylindrical shape for substantially its entire length;

said cap body having an outer diameter substantially equal to the diameter of said cylindrical passage;

said cap body being force fitted into and closing the open end of said passage;

(b) a conical portion formed in the forwardmost portion of said cap body and flaring outwardly from said cap body;

(c) at least two lateral projections of wedgeshaped cross section defined by the external surface of said cap body and extending rearwardly from said conical portion to said cylindrical portion; and

(d) said cylindrical cap body being of length substantially less than the length of said passage and being rearwardly displaceable within said cylindrical passage upon impact with a target, thereby causing said projections to score said internal wall to form preferential rupture lines, whereby said nose portion ruptures along said lines and to spread laterally to form petals.

2. The mushrooming petal bullet set forth in claim 1, wherein said projections on said cylindrical cap body are in the form of ribs extending parallel to said axis of said shot body.

3. The mushrooming petal bullet set forth in claim 1, wherein said projections on said cylindrical cap body are in the form of ribs extending at an angle with respect to said axis of said shot body.

4. The mushrooming petal bullet set forth in claim 1, wherein said projections are spaced equidistantly around said cylindrical cap body.

5. The mushrooming petal bullet set forth in claim 1, wherein said cap body is formed of steel and has a flat front face.

6. The mushrooming petal bullet set forth in claim 1, wherein said cap body is formed of steel and has a concave front face.