Snake45, if you go over to the S&W forum (I think it's www.smith-wessonforum.com
they did an upgrade a few months back and now I can't log in) and search the reloading forum for "THE LOAD", you will get lots of threads on it. In one of the threads, there is a link to a website where the owner scanned the relevant pages of the loading manual and it is available. I saved the pages for when I finally scrounge up some SR4756 but I don't feel right posting them since the other guy went to the trouble to do it already and the info isn't mine.
Erich, a member there, is a great proponent of "THE LOAD" and several members there have used it in even steel-framed snubbies, with no apparent ill-effects. IIRC, there were some members who used limited amounts in alloy-framed snubbies, too, but the reports were that "THE LOAD" was VERY unpleasant out of the alloy-framed guns. Do some looking, have fun but BE CAREFUL!