flyer, this may be true in india, etc but i have never heard that suggested about the british, or dutch, etc european proofhouses where they have strict laws on proof. the way they proof barrels isnt all that time consuming so there is no reason why they wouldn't proof every one, as far as guns made in non-proof law areas (the U.S.) you can more or less be assured of the safety of guns by fear of lawsuits, occasionally things go wrong which is part of the reason i never buy a gun in the first couple years of manufacture (who wants factory new guns anyways?) when speaking just of barrels for building muzzleloaders, any of the big names build barrels that will be just fine as long you dont do anything wrong to them, these guys have years of experience and expertise