High-performance projectile

• US 5,012,743 A
• Filed: 12/05/1989
• Issued: 05/07/1991
• Est. Priority Date: 12/05/1988
• Status: Expired due to Fees

• Current Assignee: Fabrique Nationale Nouvelle Herstal
• Original Assignee: Fabrique Nationale Herstal EN Abrege FN Societe Anonyme
• Inventors: Neuforge, Marc, Denis, Jean-Paul
• Primary Examiner(s): TUDOR, HAROLD JAY
• Application Number:
  US07/446,538
• Time in Patent Office: 518 Days
• Field of Search: 102/501, 102/514-517, 102/518
• US Class Current: 102/514
• CPC Class Codes: F42B 12/745 the core being made of plastics; Compounds or blends of plastics and other materials, e.g. fillers
• CPC Class Codes: F42B 12/78 of jackets for smallarm bullets ; Jacketed bullets or projectiles

Abstract

Low-recoil projectile with high stopping power, essentially made of at least two components, i.e. a hollow casing (2) made of a hard material and a core (3) made of a rigid material having a lower density than the casing (2) characterized in that the proportions of the lengths of the constituent parts of the projectile are: for the head (4), between 1.5 and 3 times the caliber dimension, for the cylindrical part (5) between 0.7 and 2 times the caliber dimension, and for the rear conical part (6) between 0 and 1 times the caliber dimension, the ratio 1/d (length versus caliber dimension) being situated between 2 and 3 and the center of gravity (7) of the projectile being situated in said cylindrical part of the projectile.

Claims

1. A projectile comprising:

a hollow casing (2) having a tapered head portion and a cylindrical portion, the casing being formed of a hard material having a density and having an overall length and a caliber dimension, the ratio of the overall length and caliber dimension being between 3 and 6;

a core (3), inserted within the casing, the whole core being formed of a rigid high density plastic material having a lower density than the density of the casing material;

the head portion (4) of the projectile having a length between 1.5 and 3 times the caliber dimension;

the cylindrical portion (5) of the projectile having a length between 0.7 and 2 times the caliber dimension and being connected to the head portion;

the projectile further having a center of gravity (7) situated in the cylindrical portion.

2. A projectile amending to claim 1, including:

a rear conical portion (6) on the projectile having a length no longer than the caliber dimension.

3. A projectile according to claim 1, wherein the center of gravity (7) is situated in the cylindrical portion between 0 and 4 mm from the connection of the cylindrical portion (4) to the head portion (4).

4. A projectile according to claim 1, wherein the casing (2) has a mass per unit volume between 20 to 100N/dm³.

5. A projectile according to claim 1, wherein the core (3) has a mass per unit volume between 5 to 20N/dm³.

6. A projectile according to claim 1, wherein the casing (2) is made of metal.

7. A projectile according to claim 1, wherein the core (3) is made of polycarbonate.

8. A projectile according to claim 1, wherein the core (3) is made of polyamide.

9. A projectile according to claim 1, wherein the plastic material is filled with glass fibers.

10. A projectile according to claim 1, wherein the plastic material is filled with pellets.

11. A projectile according to claim 1, wherein the core (3) is made in one piece.