Re: Firing pins for W.H. Hamilton
I do want to say that it was fairly common in the old days to deliberately remove or disable the firing pins on old shotguns that had been determined to be dangerous to prevent them from being fired. On a few occasions, people have not understood that, made new firing pins, and ended uip blowing up the old gun and injuring themselves.
Anyone who decides to "restore" an old gun to firing condition should make sure that it can stand up to firing. Note that I am NOT just talking about black powder vs. smokeless; some of those guns should not be fired, period. Often the old barrels have been rusted out, or scrubbed so often that they are paper thin, ready to blow with even the most mild pressure.