I use 11gr. of Trailboss and a 150gr. cast gas checked, moly coated lead bullet in the 6.5 Creedmoor. it gives about 1050-1100f/s and a decent surpressed load. Of course you're going to have lots of drop at 100 yds. Trailboss is good because it has enough bulk. It should work about the same in the 308. Case capacities are similar. You can start low and work up to what you want.
