Originally Posted By: joekski

My main question is should I be concerned with the 13/1 proof and .727 bore diameter? If I understand it correctly, 13/1 means measurement was between .719 & .728, so this shouldn't be a problem.


At a glance, that all looks correct. I think the only issue with proof and the bore diameter is that you have a limited amount of wall thickness remaining for lapping before it is out of proof. I would just factor that into the price, personally, assuming you are in the US where proof is not required.