It'll be a few days before I get a chance to do some testing with lead bullets. I have a Lyman "M" die on the way, hopefully it makes it by the weekend. In the mean time I'm using a 115gr Montana Gold JHP on top of 5.5gr of Silhouette & a WSP. I've tried 231, Power Pistol, Clays, Unique (get the pressure up and it isn't dirty), Universal, & Bullseye. IMR 4756 is next on my list but I really like Silhouette for accuracy, haven't had a chance to run it over a chrono yet. Lead bullets need to fit. I cast a 125hp or 130fp from a Mihec brass mold, size to .358 and use the Lyman "M" die to help flare the case & align the bullet. If the BHN is too low, the case will actually size the bullet smaller. The M die helps this situation. I load several other calibers and cast my own with all of them from .30cal to .45/70 & the M die really makes a difference.