ENGINEERED NECK ANGLE AMMUNITION CASING

摘要

Polymeric ammunition casings having engineered neck geometries, and methods of forming such ammunition are provided. In particular embodiments, both the internal and external neck geometries are engineered to provide even greater improvement of the accuracy and consistency of the ammunition.

主权项

1. An ammunition article comprising;
a casing defining a generally cylindrical hollow body having internal and external walls, the casing having a cap at a first end thereof and a pressure vessel at a second end thereof, the pressure vessel having a proximal end defining a body region and a distal end defining a neck region, wherein the cap is interconnected with the proximal end of said pressure vessel such that the casing at least partially encloses an internal volume, and wherein the diameter of the pressure vessel narrows from a first diameter at the body region to a second diameter at the neck region; wherein at least the neck region of the pressure vessel at least partially comprises a substantially polymeric material; and wherein the geometry of the internal and external walls of the casing in the neck region of the casing are independent of each other.