7828, H1000, H570, H5010, Retumbo, H450, RL22 and 25, basically look to powder on the slow end of the scale. Personally with 140gr bullets I get the best results from 7828 and RL22 in mine. With 160, 175 and 195gr bullets I do better with RL25 and Retumbo. FWIW - dan