There's one at a local shop whispering sweet nothings in my ear. I'm guessing all those molds I have for the .45-70 would work just fine in the bigger case. In a Marlin .45-70, I am fond of the Lee 325 over 17 grains Unique for a real pipsqueak. But somewhere I have a couple of those old Lyman GC 550-grain hammers of Thor from a mold Lyman no longer makes. Anyone have favorites for this boomer?