FYI, Powder Valley now has a few powders available. Hit the "available" option and save yourself a long trip thru stuff not in stock.
One is Alliant 1200R, which is reportedly designed for the.223, so it would probably work in the .358 Win, etc.. It's not that well known, not a lot of load data, so people don't seem to be grabbing it up. Burn rate is close to RL-10, which is a pretty good .356/.358 powder. Not much data yet, but one could improvise, work up loads using comparative data.
PV also has X-Terminator,
DF
