If it turned out your way, then a slightly longer valve stem (to prevent the striker hitting the barrel screw), combined with a stronger hammer spring to compensate for the shortened stroke, should do the trick and increase shot count by giving access to the back half of the bell curve.
Question on the above. Could a lightened striker prevent the striking of the barrel screw? Course I don't know where the barrel screw is. I left my print out at the office. Just thinking out of turn.
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