Put the first 80 rounds through my new Taurus Gaucho .45LC the other day, and at the end of the session, the cylinder pin was stuck pretty tightly - took a lot of effort and some padded pliers to remove it. It appeared that there was some peening from the cross pin going on, making a tiny ridge just behind the groove, around the circumference of the pin. Once out it would not go back in all the way - I had to lightly file it to get it back in. What factors might cause this condition? They were book 250gr lead loads (8 gr unique), and the cross pin seems fine (it was tight) and the base pin didn't ever back out that I noticed - I can't really think of anything else that would make this happen unless the pin was too soft. Ideas? I'd probably try a Belt Mountain pin before I sent it back if that might help...
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