Originally Posted by
singleshotbuff
Gentlemen,
Maybe this will shed some light on this powder. I have a Winchester counter mat advertisement from several years ago when I worked in a gun shop. I keep it on my loading bench to lay things on as it is padded. It lists Winchester ball powders, along with their intended uses.
Anyway, according o this mat "WST (win super target) powder is comparable to and SUCCEEDES 452AA". I'm not sure if this'll help, as I don't know about availability of WST data. I looked in an older WInchester data book and it lists WST in 12ga loads, 20ga 3/4oz loads , 38 Spl, 40 S&W, 10mm & 45 ACP loads. Another Winchester book may contain other loads. I have a selection of Winchester load books in my files from several years, I can look in them to see if I can find other loads with WST if this would be of any help.
Hope this helps.
SSB