Go to Nosler's web site and to their reloading page. I've loaded for 4 different 7mm-08's using Hodgdon Varget and Nosler 140 grain BT & AB bullets, probably over 3500 rounds. If your rifle doesn't like something in the range of 42-42.5 grains of Varget with the 140 grain bullets, I would be shocked.....only other advice is buy some good brass - Nosler, Lapua - its uniform and will eliminate a LOT of headaches.
Elkbane