Unless you are taking 400+ yard shots, it is way too much gun for whitetails. if you like the 7mm bullet, go with the 7mm-08, or the .280rem. the 7mm Rem Mag is a good "all around caliber" just like the .30-06. it is perfect for elk, moose, caribou, etc for shots out to 500 yds. I know people that take them grizzly bear hunting. I also know people who only had half a whiteail left and the bullet went through them at 40 yards so fast he had to track the deer for a mile or more. way too much gun for close-range whittails.
-Chuck