If you can take a little recoil then go w/ the .270. I love my .257 roberts, but they are harder to find and you won't be able to stop at Wal-Mart/K-mart or some other big store and readily get ammo. You could look for a used 7mm mag or 30.06 with a ported barrel or muzzel brake and never buy another gun (but why do that, lol).