Your barrel should have the two letter assembly date code, month/year, stamped on the barrel. If it doesn't, the barrel may have been set back or it could be a replacement barrel. I sent a 1960's vintage 700 BDL to Remington in 1984 to have the 6mm barrel replaced with a new, factory installed, 250 Savage barrel. I don't recall if it had assembly code stamps on the barrel and I no longer have the rifle, so I can't check.
