Some gun writer once wrote the .308 would probably shoot very well with double-based horse manure, but I generally start trying 150s in a new-to-me .308 with 45-46 grains of Varget--as a lot of people apparently do. Can't remember when it didn't group 3 shots in an inch (and often much less) in any decent bolt-action .308, and it's also worked fine in a few lever-action, pumps and single-shots.
