I have an Encore barrel on the way and want to develop some cast bullet loads for it. The only mold I have on hand is an Ideal 457231, a 360-380 grain round nose, so I will start with it. This is my first 45-70 and I have some questions. What powder? I have H322 and IMR 4198 on hand and would like to give them a try. Fillers? Do I need dacron in this big case? I am not looking for top velosity, just an accurate load that does not kick my teeth loose. What other bullet might I try? I thought I would try a flat point in case I decide to buy a lever action. Any help would be appreciated. Shotgunner