I recently with help from another mate restored a 1945 Mk3 No.1 SMLE .303 that's got a heavy barrel fitted to it and it was as far as I know used as a range rifle by the previous owner and was a bit lacking in the tlc dept but after stripping it down,boiling the timber which had a lot of gunk come out of the wood and then sanding and applying linseed oil and staining it it came out looking a real treat.
The barrel was a whole different story though as it looked as though the last 2"-3" of the barrel was looking a bit short of rifling.
The mate asked if he could spend some time on the barrel and I said that if he had nothing better to do go for it as I thought I'd be up for a new barrel.
After a couple of days of scrubbing and soaking in BoreTech,Sweets 7.62 and more scrubbing the amount of gunk that came out of it was unbelievable and I now have more rifling than was seen originally and it now shoots 180gn Sierra Pro Hunters into a 2" group at 100 yards with open sights.
The ability to think and speak doesn't necessarily guarantee intelligence