I doubt there is any difference in barrel quality between the Axis and Savage 12FV. The Axis barrel you have is a proven shooter with plenty of barrel life left. The 12FV has an Accutrigger and blind magazine, tupperware stock with beavertail forearm if that matters. I would not consider the 12FV a handy carry rifle with the 26" varmint barrel. I'd keep the Axis and order a Boyd's stock.