Peterb

One thing you forgot after:-

"If any barrel dents, pits or looseness is discovered, the gun fails
visual proof and the gun must be fixed. If the gun passes visual proof,
it goes on to firing proof."

If it fails proof, they can and will cut the barrels up !!!

I do agree with you though that without any form of pressure
barrels / testing equiment "anyone who tries to do this themselves
is a complete idiot."

Some times a little information is dangerous !

500 Nitro