I was thinking about 7-10 gr. of Unique in magnum brass for plinking loads in a 4" 29 and a 6.5" 629. Anyone got any experience with these bullets? Any recommendations or watch outs? They have a bevelled base. I want to avoid leading if possible. I have some 231, 2400, and Blue Dot available if one of them would be a better choice. I've always loaded jacketed. I have Lyman's 49th, but would like opinions from you guys. Thanks in advance.