This firing pin does look weird. The front end appears to have no problem, but the rear, unrelieved portion of its cylinder has been doodled with, filed, smoothed off, or whatever, with a file, maybe to remove a burr--though how one would develop there in the first place is a mystery.
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"... Liberty is the seed and soil, the air and light, the dew and rain of progress, love and joy."-- Robert Greene Ingersoll 1894
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