I want to swage pure lead bullets for a 45 colt cartridge. I plan to use either a gas check or base guard on the bullets. Just wondering. with the base protected, what are maximum velocities/pressure I can put to such pure lead projectiles. Also, I'm hesitant in swaging a harder lead alloy. I'm using a Dave Corbin's H style swaging die. What is a safe maximum hardness for such swaging.
Thank you.
Stephen