Patent ID: 9441930
Filing Date: 2016-09-13
CPC Classification: B22F,C04B,C22C,F42B,F42C

Claim Text:
1. A method of making a polymeric ammunition cartridge having a substantially cylindrical metal primer insert comprising the steps of: providing a substantially cylindrical metal insert comprising forming a substantially cylindrical polymeric middle body comprising the steps of forming a substantially cylindrical open-ended polymeric bullet-end component from a second polymer composition comprising the steps of adhering the polymeric bullet-end coupling component, the substantially cylindrical polymeric coupling end or both to connect the polymeric bullet-end coupling component to the substantially cylindrical polymeric coupling end; forming a propellant chamber in the substantially cylindrical polymeric middle body to extend from the bullet-end aperture to the primer flash hole inserting a primer into the primer recess; at least partially filling the propellant chamber with a propellant; and frictionally fitting a bullet in the bullet-end aperture.