Hanco is resurrecting some old threads!
That's OK some missed it the first time maybe.
A whole pile work....from 4064 to RL25 and similar. The new slow burners raise new possibilities.
Recently I have used H 4831, 7828,and RL22...mostly because I have a lot of all three to burn through.
I haven't tried any of the newer powders, but 2925 fps with RL-22 and a 150 gr partition landing consistently under an inch is hard for me to wanna fudd with!