Ok I was going to build a 280 Sherman but am think about going to a 7ss would I be able to do this off a Bighorn Origin action? The reasoning behind this is I could double this up as two guns could be my big game rifle and my predator rifle. The Bighorn action uses small shank savage threads is controlled round feed. Or would I just be better off going with an trusty Remington 700 and have it trued up.