I found out about no9 about 2yrs ago. I reload for more than a couple 357's with it and am nothing but pleased.
I always went back to Unique when trying different powders, but I think this one will hang around some.
I worked up to the loads that I'm using, but am unable to tell the starting and max point because of a fire that ate all my manuals and notes.
Please keep in mind, the Ruger is built like a tank and can handle most any load "BUT" even a tank can be destroyed.
It seems that "MY" Rugers like the 180 xtp pushed to the limit and are very accurate, but the like the 180wfngc even better.
PS Security Six likes a different load, Blackhawk different, and Redhawk different also but, they seem to like it towards the top of loading.
BE SAFE