Kyle,
Look at the fp's tip under magnification.
Also, you might want to check whether the front end of the pin is fluted, with 3 longitudinal grooves in the pin which would allow for the escape of pressure should a primer be pierced. Earlier models' fp's were not originally relieved, and sometimes replaced or reworked to establish the safer setup, which helps prevent the firing pin from being turned into a powerful gas piston when ignition pressure from a pierced primer could enter through the hole for the fp's tip in the front end of the breech block. In the case of your numbered, original pin, just obtain a good aftermarket one that is fluted, and swap it out for shooting. Tom Heller may have some; if not, they appear frequently at online sources, sellers, auctions, etc.
David Parker
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