16.0 grains of either WW296 or H110. Winchester primer. It's a little less than max and works fine in ALL of the .357s I own. These two powders are the same animal, so whatever container or logo is on the outside, it shouldn't matter. Older lots might not be. Alliant has a new "300MP" that looks real interesting. It is supposed to help duplicate "factory" velocities.
10.0 grains of Accurate No 7 or 13.0 grains of Accurate No 9 would do in a pinch.
I shoot a lot of Cast Bullets and "Plated" bullets with other powders like Unique, for reduced loads.
Always double check your data. These loads are a little less than Max, as far as I know, but you need to start at the starting loads and work up with your components and guns.