Took this out and ran some test loads today. Of the powders I have tried IMR4350 is still giving me the best results.
129gr Hornady SP
Nosler Cases
IMR4350 44.5grs
CCI LRM primers (ran out of br2's)

Giving me avg@2800 which was my targeted fps from this 20" barrel. Primers are flattening but hopefully the brass can take it. Accuracy is pretty consistent @ .5 which is better the I am. I don't think even with br2 primers could I pull it together any better. Though I will be trying.

Will post some targets next time around.