well, there are a few custom gun builders that come to mind...they build up new sets of barrels from componets and proof those barrels before fitting...winchester proof loads have been a favorite for proofing barrels for some time now...

also, the point is, one does not necessarily need to proof guns to american specs...however, if your seller is confident enough to give permission to proof a gun, that is a good sign that you are dealing with a knowledgeable and honest person...

and if in fact a barrel has a minimum wall thickness of .020, that is reason enough to not buy the gun...in my opinion...

mc, you seem to take some interest in this topic...how come? as you are an unknown here, just wondering what is your role, besides looking to cause discord...

Last edited by ed good; 10/12/22 08:28 PM.

keep it simple and keep it safe...