There really isn't a bad choice. Any "normal" bullet , 150, 165, 180 grains, will work on Whitetail Deer from the 308.

I took my biggest Whitetail Buck, 200 lbs dressed, with a 150 HotCore from the 308. I also took my largest Bull Elk, a mature 7x7, with a 165 HotCore from the 308.

Whitetails just aren't that hard to kill... anymore I use a 165/168 for everything, antelope to elk.

“Perfection is Achieved Not When There Is Nothing More to Add, But When There Is Nothing Left to Take Away” Antoine de Saint-Exupery