Re: POWDER FOR THE 300 RUM?
I've been working with retumbo and H-1000, and havn't found my load yet, but getting closer.
Have heard some really good things about RL 25, and wanted to try that but then I heard it is really temp sensitive, so I don't know.
There a lot of guys on here with more experiance than me, and I'm sure they will chime in soon. Good luck with load development...