If only hunting whitetail, i would stick with a lighter recoiling .270. For many years, i shot a Remington 700 BDL SS in .270. After a good case of the magnum gitters, i traded my .270 for an identical 7mm Rem. Mag. Used same scope, rings, bases, and shot remington loads through both them. When it came down to it, i couldn't tell the difference between the two except fo the added recoil at the range. I expect that the 7mm would edge out the .270 for longer shots in terms of knockdown, however, if i knew than what i knew now, i would have saved the money and kept the .270. The sad part to this is that i am about to buy a new rifle for wife to shoot. It will be a .270 Win.