Id go with either the 270 or 308. My personal pick would be the 308 because you can shoot heavier bullets with a little less recoil(not much though) if you wernt planning on black bear I would say 270(now a 270 with a 150 grain bullet will drop a bear, I just prefer the heavier bullets of the 308(150,165,180 grain 308 vs 130,140,150 grain 270) just my 2 cents.