Hello Folks,
Again, as a muzzle loading rifle shooter, I don't have much of a feel for how much compression to employ when loading black powder in the 45-70 cartridge. I'll be using Starline cases, and will start off with the Lee 405 gr plain based bullet. From what I've read, only the old balloon-head cases would actually accept 70 gr of powder, but that may have been with a 500 gr bullet. It was also probably FFg granulation; I'll be using FFFg (that's what I have). My inclination is to load a case up to where the bullet base will just touch the powder, then add a grain or two.
Thanks for the advice.
Take care, Tom