I have been lurking here for several months now, and found allot of information here. I have a collection of cannon numbering about 200. They range from 3/4" long to a newly acquired tube that has a 2 3/16" bore, 34" long and it is made of brass or bronze. I was told that it came from Bannermans in 1966. I believe that it is a 2/3 scale 6 pounder. Now for my question. My newly acquired brass cannon looks as though it was cast solid then bored but I want to be safe and have it bored a little bigger and put a 2"ID steel liner in it. Can anyone here recommend a machine shop that can/will do this? I live in East Tennessee.