I have not tried that powder. In the .308 both my dad and I use either IMR 4895 or 4198 with very good results, I don't remember the charge rate, I try not to use the memory, but I look it up because I have it marked in my Lyman book. Dad had problems using blc2 pressures climbed and spiked rapidly in just 1-2 grains of powder, and if I remember right he was not even close to max load, at the low end.