Changing from a 7 mag to a 270 mag is an exercise in futility, a waste of your hard earned money. There just isn't hardly any difference in performance other than you can shoot heavier bullets in your 7 magnum and thats a plus IMO...
As to killing power and range, not much difference in anything from an 7x57 to a 300 Wby if the truth were known, in the field that is....
Guess that puts me in the barrel.
