I shoot a 7mm mag, 165 grn.boattail soft pnt.
On deer it is a little over kill, but as an all around big game rifle in my opinion, if it walks on 4 feet, I can kill it. Remember shot placement is by far way more important than power. A 7 mm is faster, flatter shooting and has more velocity than the 30-06
In my opinion it wouldn't be a hard choice to make. Good Luck and shootem in the heart.

We are not hunters: We are big game population reduction specialist, be safe, shoot straight, and most of all be double sure of your target.