I'm very new to black powder loading but I have a few rifles I believe I could use for that purpose. For starters, Handi rifles in 357mag, 444 Marlin and 45-70 Gov. For cartridge reloading, how important is it to use compression dies? If you believe them to be a plus, do you think a NOE expansion plug just smaller than your neck expansion would work for this. 6 or seven dollars for the plugs is much cheaper than expansion dies. Advice welcome. Gp