PA24, surely you know that a new pin will be made bigger than the worn one. What kind of an idiot would make it the same size. In the past it was not uncommon for high end guns to come with a few sets of slightly bigger hinge pins in a little compartment of the gun case. If you are serious and not just trying to get a rise, I suspect you don't know as much about break open guns as you think you do.
nial