Patent ID: 9677860
Date: 2017-06-13
CPC Classifications: F42B

Claim:
1. A shot shell, comprising: a housing including: a charge of propellant contained within the internal chamber; a shot wad extending entirely within the internal chamber and including a charge-contacting surface and a shot cup with a pellet-facing surface; a plurality of shot pellets within the shot wad; and a setback force absorber within the internal chamber and extending generally between the pellet-facing surface of the shot cup and the plurality of shot pellets; wherein the shot wad includes generally cylindrical wad sidewalls that extend from the shot cup and define a payload region that contains the plurality of shot pellets; wherein the charge-contacting surface of the shot cup is in contact with the charge of propellant; wherein at least one of the plurality of shot pellets is in contact with the wad sidewalls; wherein at least one of the plurality of shot pellets is in contact with the absorber; wherein none of the plurality of shot pellets are in contact with the pellet-facing surface of the shot cup; wherein the absorber is in contact with the pellet-facing surface of the shot cup; wherein the absorber is configured to compress in response to setback forces resulting from combustion of the charge of propellant; wherein the absorber is generally spherical and is formed of cork, and wherein the absorber has a Young's Modulus of less than 5,000 psi (345 bar); and wherein the absorber is formed from a different material than the shot wad and the plurality of shot pellets.