New member here, I have seen the forums before but just recently joined as I started casting. I have an RCBS Pro Melt II and a bunch of MP molds I ordered a few days ago with a handful of Lyman molds I bought of eBay. I finally put the equipment to use on this past Sunday and everything went well for my very first time. Unfortunately, all I have on hand is 50 pounds of plain lead of which 10-12 lbs I casted into these beautiful bullets just to practice, but I was told I can not shoot them out of my magnum revolvers/carbines or my 45-70/45-90's due to the soft lead.