Polymer-based cartridge casing for blank and subsonic ammunition
First Claim
1. A high strength polymer-based cartridge for subsonic ammunition comprising:
- a first end having a mouth;
a projectile disposed in the mouth;
a shoulder, disposed below the mouth, forming a bottleneck cartridge;
a wall, molded from a polymer, between the first end and a second end opposite the first end;
an insert joined to the second end, comprising;
an extraction rim and a groove both disposed at one end of the insert; and
a primer pocket in fluid communication with a flash hole, the flash hole in fluid communication with a propellant chamber; and
a sleeve section;
wherein the sleeve section and the wall form the propellant chamber;
wherein the sleeve section and the wall comprise a thickness at least 1.25 times greater than a standard thickness of a wall of a standard cartridge,wherein the propellant chamber between the mouth and the insert is unobstructed, andwherein the propellant chamber comprises a powder load having a load density greater than 40%.
1 Assignment
0 Petitions
Reexamination
Accused Products
Abstract
A polymer-based cartridge for subsonic ammunition with a first end having a projectile disposed in a mouth, a shoulder forming a bottleneck cartridge; and at least a polymer wall between the first end and a second end opposite the first. An insert is joined to the second end, having an extraction rim and groove, a primer pocket communicating with a flash hole, and the flash hole communicating with a propellant chamber. A sleeve section is also included and the sleeve section and the wall form the propellant chamber having a thickness at least 1.25 times greater than a standard thickness of a wall of a standard cartridge. The propellant chamber between the mouth and the insert is unobstructed and comprises a powder load having a load density greater than 40%.
22 Citations
6 Claims
-
1. A high strength polymer-based cartridge for subsonic ammunition comprising:
-
a first end having a mouth; a projectile disposed in the mouth; a shoulder, disposed below the mouth, forming a bottleneck cartridge; a wall, molded from a polymer, between the first end and a second end opposite the first end; an insert joined to the second end, comprising; an extraction rim and a groove both disposed at one end of the insert; and a primer pocket in fluid communication with a flash hole, the flash hole in fluid communication with a propellant chamber; and a sleeve section; wherein the sleeve section and the wall form the propellant chamber; wherein the sleeve section and the wall comprise a thickness at least 1.25 times greater than a standard thickness of a wall of a standard cartridge, wherein the propellant chamber between the mouth and the insert is unobstructed, and wherein the propellant chamber comprises a powder load having a load density greater than 40%. - View Dependent Claims (2, 3, 4, 5, 6)
-
Specification