I found a can of WSF and wonder if it is a rename of an older powder. 473AA? 452? I do have reloading data as is but am curious.

I'm pretty sure WSF is 473AA. I have some old pamphlets I can check. 452 is either WST or WSL.

Try calling Hodgdon or emailing if you need to know now

Thank you. That is what Id hoped but I am waiting on an answer back too.