I have been looking at getting a 45-70 mold for a while and just cant make up my mind. I really plan to go with NOE's 350gr bullet. But what I cant make my mind up on is whether I need a gas check mold. This bullet will be for hunting.
I started casting this year and have had success with my 44 mag using gas checked bullets cast of 50/50 WW/PB air cooled. This load took my first deer with cast bullets. After doing this though I thought I probably could have gotten by with a plain base mold for the 44 in a revolver. I dont want to make that mistake with the 45-70.
My 45-70 is a thompson center encore pro hunter with a 20" katahdin barrel. I would like to push the 350gr bullet to around 1700-1900 FPS. Is that velocity doable with 50/50 alloy that will still give me some expansion?