Old thread, but a good one. I find I'm in lots of company with my caliber of choice, .30-06 Springfield, but somewhat of an odd-ball with my preferred bullet weight, 165 grains. I've always liked the 165 offerings as a dedicated all around deer pill. I've taken most deer with the 165 gr. Sierra GameKing (always a great bullet), but am now using 165 gr. TSX for a little different terminal performance. The recoil from this round out of my BAR is ridiculously mild and such a pleasure to shoot. It hardly pushes me off target and I think that accounts for a well-placed, quick follow-up shot as much as the auto-loading even though I've only shot more than once a couple times.
I'm building a dedicated longer range deer rifle right now based on a large ring Mauser 98 action that'll be chambered in .270. So I'll pretty much take any round based on the 06 and be happy. Wouldn't turn down a nice .308 either.
My first deer taken with a rifle was with a .300 win mag. For me, that'll probably be the last deer I ever take with a .300 too.