Accubonds and I am using IMR 4350 68 gr only thing I went 165gr on the bullet this is in a Mod 70 Coyote Lite in 300wsm 3170 fps average ?
Also great performance with the 168 gr Barnes TSX Match grade if you think the Accubonds are pricey.
If you shoot ballistic tips the design and BC are very close with the accubonds so load both the same, shoot the BTs for cheap foder and the ABs for the real deal. Just MHOP
165 have more energy than the 180s at 600 according to the calculator as if that maters.
"You'd be far better off with a couple of good reloading manuals, or at least getting the info from the powder manufacturer's website." Quote from Scott N good advise at least compare load data with good referances when you get it from guys like me.