Muzzle exit tester

A muzzle exit tester system, comprising:

• a barrel having an input end and an exit end;
• a shock plunger freely movable within the barrel;
• a shock plate having a first side that faces the exit end of the barrel;
• a support isolation structure that resiliently supports the shock plate, and receives a portion of the barrel that includes the exit end of the barrel;
• and
• a pneumatic shock apparatus operatively coupled to the input end of the barrel, the pneumatic shock apparatus configured to retract the shock plunger in the barrel via a vacuum while producing a gas pressure charge, and subsequently release the gas pressure charge, such that the shock plunger accelerates to the exit end of the barrel and impacts the shock plate;
• wherein the shock plate is dimensioned and shaped with selected geometries and cutouts to create resonances that when excited produce a desired shock response spectrum;
• wherein the shock plate is configured to resonate at frequencies and amplitudes corresponding to a shock condition of a gun muzzle exit when impacted by the shock plunger.