초록 ▼

A shotshell having a hull with a protective barrier layer of fiber or other alternate material that prevents the hull from being in contact with the chamber. The protective layer may cover any portion of the exterior of the hull. The protective layer protects the plastic hull from the hot chamber of

A shotshell having a hull with a protective barrier layer of fiber or other alternate material that prevents the hull from being in contact with the chamber. The protective layer may cover any portion of the exterior of the hull. The protective layer protects the plastic hull from the hot chamber of the barrel that would adversely affect the structural integrity or functioning of the shotshell. The protective material may be of precut size and thickness that when applied to the exterior of the hull will increase the diameter to reduce the clearance with the chamber and thereby resist sliding out of the chamber before the breech is closed. The protective layer may also have an adhesive surface disposed between the exterior surface of the hull and the protective layer to prevent the separation of the hull and the protective material.

대표청구항 ▼

[ What is claimed is:] [1.] A shotshell comprising:a projectile;a propellant charge;a hull having a plastic portion extending for a substantial portion of a length of the shotshell and accommodating the projectile in a front portion and the propellant charge in an aft portion;a metallic cap attached

[ What is claimed is:] [1.] A shotshell comprising:a projectile;a propellant charge;a hull having a plastic portion extending for a substantial portion of a length of the shotshell and accommodating the projectile in a front portion and the propellant charge in an aft portion;a metallic cap attached to the hull at an aft end of the hull; anda thermally protective material selected from the group consisting of paper and fiberglass and adhered to a substantially cylindrical exterior surface of the plastic portion.