IMR 4831/H4831 have been a main stay for both cartridges for ages ...
Now days we can add many more to the very suitable list ... RL 22, RL19, Rl 17.... IMR 4350, IMR 7828, several of the new IMR powders .... plus a number of other brand of powder ...
I have loaded for both cartridges for many years ... either one can be easily loaded ...