I use varget in my 308, plenty accurate!
Varget is a great powder with excellent consistency, low, often single digit S,D.’s. It’s also very temp stable. Target shoooters seem to like it.
RL-15 is a good one, reportedly more temp stable in later versions as manufacturers compete for military contracts.
If I had to go with one, it would be Varget. But of course, I have both and use both.
DF