I've tried rebidding it with no luck. But, I'm not a gunsmith.
I have 4 powders on hand. IMR4350, RL22, RL19 and IMR4895. There should be data on the first three in my manual so I'll try a few with all of them and see what I can get. I also bought a box of factory ammo (for fun and brass) so we'll also see what they do.