I like the mid weigth 180 ish grain boolitz for the 30/06,,, of course this is due to going after Moose, Elk and Bears,,, Deer fore sure.
I find that they fly Soooooo nice,,, good consistency and the benefit of a extra critter impact.
If I was planning on Deer size with some larger and smaller,,, then I'd mostly go with the 165/68 boolitz,,, not saying that the 150's wouldn't be in the mix either.
The trick for me is finding the boolit that shoots the best out of that rifle,,,, tighten it up the best I can with reloading ,,,, then go Kill $4!¥,,, Ha.
Just a me thing,,, good luck finding what works,,, the old school Ought-6 normally shoot most boolitz good .