RE: 7mm?
I use a 7mm rem mag, the recoil in my perception with a moderate weight rifle is more than a 3006. I love mine but it is used for more than deer (moose and elk regularily). If your looking for mostly a deer rifle and given your age I would concur with the suggestion of a 7mm 08, it's range ability to take a deer is far more than most hunters are capable. Also being your younger you may want to get a small/lighter package and not be punished for doing so. BTW with the smaller/lighter rifle combos the WSM offers it usually makes any gain in felt recoil null over the rem mag.