MULTI-COMPONENT BULLET WITH CORE RETENTION FEATURE AND METHOD OF MANUFACTURING THE BULLET

摘要

A three component bullet with an improved core retention feature and a method of manufacturing the bullet includes a cylindrical jacket having an open end and a closed end containing a malleable metal core which is forced into a forming die having a bottleneck shaped interior, wherein the outside diameter of the open-ended forward portion of the jacket is smaller than the outside diameter of its closed rearward portion. The open end of the pre-form may be dropped through or forced through a malleable non-rigid locking band. A relatively tight-fitting punch enters the open end of the pre-form, to radially swell the core and subsequently portions of the jacket fore and aft of the non-rigid locking band, thereby securing the non-rigid locking band in place. An inwardly-extending annular band of jacket material embeds itself into the core material to lock the core inside the jacket.

主权项

1. A bullet, comprising:
a jacket having a first end and a second end; a malleable core seated within the jacket and having a section with a first end and a second end; and a non-rigid locking band surrounding the jacket, at least a portion of the locking band embedded along an inward projecting circumferential depression defined in a wall of the jacket; wherein a hinge area is defined in the wall of the jacket and in the malleable core adjacent the circumferential depression, the hinge area configured to bias the jacket from folding during expansion of the bullet; and wherein the locking band comprises a deformable material such that upon impact, the locking band at least partially dislocated from the circumferential depression, exposing the hinge area defined adjacent the circumferential depression sufficient to facilitate expansion of the bullet.