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Old May 27, 2010, 02:57 AM   #8
Senior Member
Join Date: January 18, 2005
Location: Idaho
Posts: 151

Rule of thumb for any firearm is:
Firing pin protrusion should be no more than half the diameter of the firing pin.
.050 dia. firing pin = .025 protrusion.

Of course very few firearms will have the optimum protrusion, some will have a little more and some a little less.
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