Ammunition and explosives – Projectiles – Lubricating
Patent
1991-02-25
1992-03-31
Tudor, Harold J.
Ammunition and explosives
Projectiles
Lubricating
102501, 102514, F42B 1404
Patent
active
050997653
ABSTRACT:
A high penetration bullet is provided which is made of lead and is of one piece construction. The nose of the bullet includes an outer nose portion, including an external, shaped (e.g., ogive) surface which gives the tip of the nose of the bullet its basic shape, and an inner nose portion including an internal, shaped (e.g., ogive) surface. The outer and inner nose portions are separated by a thin layer of a lubricant which is trapped between adjacent surfaces of the two nose portions when the stem or neck of an intermediate stage bullet element is peened over the inner nose portion during the formation of the outer nose portion. As a consequence of this construction, upon impact of the bullet with a target, the outer nose portion will decelerate and be impacted from behind by the trailing mass of the remainder of the bullet. This causes fragmenting or fracturing of the outer nose portion and exposes the lubricated, shaped internal surface of the inner nose portion which continues to penetrate deeper into the target. In one embodiment, a copper jacket is provided for the bullet apart from the outer nose portion.
REFERENCES:
patent: 56712 (1866-07-01), Cochran
patent: 440672 (1891-11-01), Wesson
patent: 627929 (1899-06-01), Andrews
patent: 1769263 (1930-07-01), Johnson
patent: 3208387 (1965-09-01), Giles
patent: 4961382 (1990-01-01), Bai et al.
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