Originally Posted by ed good
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...

Proof is not a thing here, ed. There is no “American” proof. Wall thickness has no bearing on proof, in countries that have proof law, ed. A gun with .020 wall is submitted for proof, and it passes, or doesn’t. Proof is not just jacking Winchester violent proof loads into a gun, and calling the gun proofed if it doesn’t fly apart when fired with that load. There is “view” where the gun is examined and measured prior to “firing” firing with proof loads, and “view” after proof. A gun can be failed at any or all of the three steps, ed.

It is against the law to sell a gun in England that is out of proof, ed.

mc isn’t unknown, ed.

Best,
Ted