Re: 7mm-08 w/heavy bullets?
I've been shooting the 168s for a while. I was using 44-45grs (depending summer/winter) IMR4350 in Remington brass with a CCI200 primer .005" off lands and was getting around ~2650fps (24" Savage) with sub-MOA performance. Depending on your brass, I would start out around 41 grs with this powder. In Lapua brass I maxed out around 43 grs.
After some time, I decided to try Varget and got superb accuracy (<1/2 MOA) with 38.5 grs in any brass, primarily Lapua (mild load). This load is slower though... around 2500-2550fps based on drops...
This was for the 168 grain Sierra Matchking, I have not used Bergers.
~Pray to God...but swim toward shore~