Like most I have found about any powder of "around 4895" burning rate to shoot in the .308 with 150-168 grain bullets. But lately I have been running 46.0 Varget in all our .308's for a hunting load, changing only the bullet. Accuracy has been better than average in all, and muzzle velocities have run from 2800 (in my wife's Serengeti Artemis with 21" Lilja) to 2900 (in my Merkel single shot's 24" barrel). Varget is also as temperature-stable as any powder in this burn-rate range, which helps since we have used these loads at widely varying temps in North America and Africa.
But I also suspect we could use single-based horse manure in the .308 and groups would be under an inch at 100.
