Hey Kid
Given that we want absolutely no airspace in any BP loaded cartridge, take the shell and dip it full, if using Goex compress enough to get the bullet in, if using Swiss pour out enough to get the bullet in without much compression but a full case. That's your starting load. If you want more velocity then drop tube and compress more, but don't reduce the load unless you want to play with fillers. From what I've read it's probably not worth it.
Wayne the Shrink
