As has been said many times "it is more about bullet placement that displacement".
That said, a 6.5, 270, 7-08, 7mm Mag, etc. will all work fine if the bullet is of proper construction, and placed where it needs to be.
I am not "Bawanna Jim" by any means but have killed enough with different cal's. to know that a well placed shot is what it is all about, regardless of the head stamp.
