I've not loaded the 140 Berger in the 7mm-08 but the problem i had was trying to get enough extruded powder like 4350 in the case to reach its max potential.
I ended up using Win 760 for my wife's with a 140 NP at 2960FPS in a factory 700 24" barrel
Ramshot Big game is a good powder for this bullet, just make sure you have some mag primers with the ball powders. Mine seemed to like them better than LR primers, but it can be a tricky powder to get to shoot. Also I had good luck with varget