My comments on this subject always make a number of people, like Don, all hissy, but I will stand by what I've said.
I have never caught the vision for either the 35 Whelen or the 338-06, and it's unlikely that I ever will. I think the 30-06 case is best left as a 30-06, or else a 280 Rem., 270 Win., or 25-06 Rem.
As I've said all too many times before, if you want optimum performance with bigger, heavier bullets, you need to increase case-capacity as well. There's no free lunch.......
AD
I would guess that had the 25-06 been invented first, many would be claiming that expanding it to 30 caliber really added very little of any use