Methods using reverse extrusion for production of identifiable projectiles

摘要

The current invention is directed to a cost effective method of manufacturing bullets or projectiles for use in firearms which are identifiable after firing and undergoing damage from striking targets. The mass production of large quantities of low cost ammunition makes adoption of a requirement that projectiles be so identifiable unlikely unless manufacturing methods and costs are not substantially disrupted.;The method envisioned produces projectile bodies from rod or wire stock by parting slugs, piercing recesses, inserting tags and swaging a projectile body with a wholly or partially encased identification with indicia. The stock may be extruded around premade identification tags. The tags may have repeated indicia in each projectile and some indicia may be accessible from the outside of a completed round of ammunition. The swaging process retains the identification tags which are protected by the body of the projectile for recovery after the projectile is used.

主权项

1. A method for making an identifiable projectile for a firearm, comprising:
backwardly extruding a slug to form a longitudinal cavity; subsequently inserting an identification tag comprising identification information into the longitudinal cavity; reducing the area of a cross section of the longitudinal cavity by swaging to close the longitudinal cavity around the identification tag; and swaging the slug to form a projectile body comprising the identification tag within the slug; and wherein the identification tag has a cross sectional area less than five percent of a cross sectional area of the projectile body that is defined by a caliber of the projectile body.