4064 and Varget are good, for sure, but... I have a 1/2 MOA load in my 308 that yall might laugh at.
Nosler 150 gr. Ballistic tips
47.0 Gr BL-C2
0.01" off lands.
This recipe, at 100 yards with a bipod and bag rests, will shoot right there with my 168 gr. TMK target bullets.
I've read that BL-C2 is supposed to be heat sensitive, but my test rounds were shot in the winter, in hunting weather temps. Caveat: I have not shot this round in the spring or summer, so I'm not sure what the heat would do to it, accuracy wise. The point of impact is almost identical to my target loads as well. I don't even have to adjust my scope to switch from target to hunting loads in that rifle.
I saw this powder on sale at Academy yesterday., but no recipe's in any of my books using it. I have Nosler 7th edition, Hornady 10th and Lyman's 49th. Very few recipes utilizing same powders. Everybody suggests using different powders. I asked the Academy guy about Varget & RL-15 & 17 and he said he couldn't keep it stocked. They were 2 of his best sellers as well as IMR 4350.