Pcp Tactical, LLC

Sabic Global Technologies B.v.

Shpp Global Technologies B.v.

Gerould Harding

Charles Padgett

Lanse Padgett

Mark A Sanner

Christopher Wall

Ernest Ford Caldwell

Ernest Caldwell

A high strength polymer-based cartridge having a polymer case with a first end having a mouth. A body can be formed below the mouth and having a propellant chamber and a longitudinal axis. A back end can be formed opposite the first end and formed below the body, with a first snap ridge comprising a first ridge angle at approximately at 90° to the longitudinal axis; and a second snap ridge, positioned closer to the first end than the first snap ridge, comprising a second ridge angle at approximately at 90° to the longitudinal axis. Further, an insert is configured to engage the back end.

Polymer cartridge with enhanced snapfit metal insert and thickness ratios

An ammunition article comprises a polymer cartridge case formed of a polymer composition comprising a thermoplastic polymer, preferably the polymer composition having a density of less than 1.35 determined in accordance with ASTM D792, the polymer cartridge case having a first end, an opposing second end, and a chamber disposed between the first end and the second end for receiving a propellant; a projectile attached to the first end of the polymer cartridge case; a metal base insert joined to the second end of the polymer cartridge case; and a primer carried by the metal base insert; wherein the metal base insert and the polymer cartridge case remain joined together as a single piece assembly upon loading, firing and removal from a chamber of a firearm for a polymer case temperature of &#x2212;65&#xb0; F. (&#x2212;54&#xb0; C.) to 165&#xb0; F. (74&#xb0; C.).

Lightweight ammunition articles comprising a polymer cartridge case

A cartridge has a polymer case with a mouth, a neck having a neck thickness (Tn), a shoulder, and a body having a case thickness (Tc). The body has a flat portion comprising a minimum thickness, a pull thickness (Tp), and a dip comprising a dip thickness (Tb). The cartridge also includes an insert attached to the polymer case opposite the shoulder. The insert can a bulge engaging the dip to maintain the insert on the polymer case. Tb and Tn are related by 1.0&#x2264;Tb/Tn&#x2264;1.5 or just &#x3c;1.5. The ratio of the minimum thickness of the body to the neck thickness is between about 1.0 and about 1.5. The ratio of Tb to Tn includes, and/or the minimum thickness of the body to the neck thickness includes, but is not limited to, ratios of 1.00, 1.05, 1.10, 1.15, 1.20, 1.25, 1.30, 1.35, 1.40, 1.45, and 1.50.

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Gerould Harding