Okay here is the situation. My father-in-law passed away and had a 270 and a 7mmRem Browning ABolts. They are both in mind condition. I get the choice of one of them. My goal is to build a WSM in the opposite bullet size. I want the rifle for shooting/deer/antelope. Would you pick the 270 and build a 7mmWSM or take the 7mm and build a 270WSM?