Hey guys. I bought my .54 TC New Englander in 1992, just recently bought the 12G barrel. I should have bought it in the 90's for $100, it cost me $450 on eBay 3 weeks ago, but it is a 'never been shot' barrel. The 12G barrel has screw-in chokes. Serial number is either 60,xxx or 100,xxx, that is...