I am so new to Savage rifles that I don't even know the difference except thread size from the Inet. So, what size does an Axis have in .308? Need to know as I am going to make a switch-barrel utilizing a .308 as the base with barrels in 6.5 CM, .257 Roberts and 8mm. Any help will be greatly appreciated and , "Thank you" in advance. God Bless and shoot safe.