This thread reminds me of an old James Bond book I read back in the 60's. Ian Fleming was touted as being firearms-proficient, but he had James as modifying his .25 Beretta by filing the firing pin to a point...
It may be a wild shot
(sorry about the pun), but check your firing pin against a good one and make sure the end is rounded and not a pin-point...Some ignorant Bond fan may have 'improved' it...
