For my RUM's, its my favorite powder. Seems to do ok with the lighter bullets, and great with the mid range bullets. For lighter bullets, 4350 or Re22 will suit your purpose better. But its a all around good powder. For the heavier bullets, Retumbo or Re25 will do the trick. Stay away from 870 however. I had bad results with fouling, velocity, and accuracy. And Hodgedon is pulling it.