Patent ID: 9115961
Filing Date: 2015-08-25
Classification: F42B

Abstract:
1. A shot shell, comprising: a cylindrical casing that defines a head portion, a mouth region, and an enclosed volume; a primer that is operatively attached to the head portion and defines a portion of the enclosed volume; a propellant charge that is located within the enclosed volume proximal to the primer, wherein the propellant charge is in thermal communication with the primer, and further wherein the primer is configured to selectively ignite the propellant charge; a shot charge that is located within the enclosed volume proximal to the mouth region, wherein the shot charge includes a plurality of projectiles that each includes: a core that is formed from a core material, wherein the core material includes at least 50 wt % copper; (ii) a corrosion-resistant outer coating that is formed from a coating material that is different from the core material; and (iii) an adhesion layer that increases an adhesion between the core and the outer coating, wherein the adhesion layer forms a ligand with the core material; and a wad that is located within the enclosed volume and separates the shot charge from the propellant charge.