If oneshoots a 117-120-grain bullet from a .25/'06 at 3100 FPS ora 130-grainer of identical construction at the same velocity from a .270 WIN., NO DEER (or any other critter) will be able to tell the difference when the bullet lands, including the shooter! For crap sake, there's ONLY 2-hundredths of an inch difference in their diameters........0.020"!![:@]