The mold I queyed up in my cart is a 3 cavity aluminum with a troughed spur plate. I'm thinking coww with 2% tin for the general run of things. Powder coated.
I probably won't be getting into black powder. There's only just so much will fit between my ears. I am thinking something like 12 gr of Unique and backer rod. 10 gr of Unique and a 400 gr cast from my 480 Ruger SRH 4.5" gives me right around 1000 fps. More research is needed.