I am looking at what appears to be a very nice pair of 12 bore Army Navy boxlocks and have a few questions for those with more knowledge than me. The right barrel on one of the guns has a wall thickness of .0019. Would it be safe to continue to use the gun with light field loads? If not, what would be the cost of new barrels and is there a gunsmith in the US who could perform the work? (I've spent several hours searching the web and it is surprisingly difficult to find this information). The guns are currently in the UK, so if it would be best to rebarrel the one gun there, I could have it done before importing them.

Many thanks.