I've only shot one load in my 308 bull barrel, but it really likes the 168gr TSX Match hunting bullet with a mid level load of Varget. I need to work on forend pressure, but it definately shows a preference for this load, the lower 3 shots were one load, the upper 3 shots is .5gr more powder, all shot back to back in about 4 minutes or so at 100yds.
Tim