4064 or H 414...

others work well also, but those two are my top choices... for velocity AND accuracy...

4064 may be 100 fps behind slower powders with the 100 grainers..but I'd put its accuracy above many other powders..

RL 15 gets third place honorable mention...

"Minus the killings, Washington has one of the lowest crime rates in the Country" Marion Barry, Mayor of Wash DC

“Owning guns is not a right. If it were a right, it would be in the Constitution.” ~Alexandria Ocasio Cortez