In quest for pistol powder I stopped by my local gun shop. As usual they only had rifle powders but I notice three large jugs of something on the bottom shelf. Pulled one out and it was Winchester WSF. I looked up load data but they only listed two of the caliber I shoot, 9mm and 45 ACP. I have never used it and wondered if anyone here had experience with it. Any posiblity for use in 38 spl, 45 Colt, 44 spl, or 44 Mag? Price was not the best but at $130 for a four pound jug with powder being so scarce I thought I had better investigate the possibilities.