I've read that shooters that load really like Varget. I've loaded a fair amount of that caliber ( had a M1A & AR-10 ) and both loved to be fed.
I found that at the distances I shoot (100yd max. is the limit@ my club) my 308 loads were NOT powder fussy, I was able to get MOA & sub MOA with a wide range of powders, even bulk WC-846, when I could find it. I've been impressed with a variety of Shooter's World line of handgun & rifle powders..all seem to work great in my firearms, Precision rifle & Match rifle may provide the greatest accuracy..but my shooting ability is more of a limiting factor than the powder I use.