| 主权项 |
1. A high strength polymer-based cartridge, comprising:
a casing formed from at least one polymer, inclosing a volume, and contacting a chamber of a weapon chambered for that cartridge, comprising: a first end having a mouth; a neck extending away from the mouth; a shoulder extending below the neck and away from the first end; a projectile, separate from the cartridge, configured to impact a target and disposed in the mouth; and a frangible portion, disposed only along the neck, capable of being split upon discharge of the projectile; wherein the split of the frangible portion prevents the cartridge casing from seating a second projectile for a weapon chambered for that cartridge being disposed in the mouth, wherein at least the mouth, the neck, the shoulder and the frangible portion are formed of at least one polymer, and wherein the neck permits a base of the projectile to extend past at least a portion of the shoulder and into a propellant chamber of the cartridge. |
