AyA strikers . When I replace one I allow it to protrude about .055" when the gun is fired . However the striker must be able to travel to a max of .075" before it hits the back of the disc . This free float or end play is essential so the the hammer when fired is not forcing the striker to it maximum protrusion and thus allows it to go forward but then back to a rest position .This allows the strikers to start lifting away from the primer as soon as the gun is opened without dragging in the primer .
