A friend has a .45 cap and ball revolver, he bought a Lee .450 miniball mold and is using wheel weights to cast. He was looking for a swagging die and cant find one.
I know nothing about BP revolvers, I cast roundballs and miniballs for my BP MLers, and use pure lead and never thought about swagging.
Should he be using pure lead? If its OK to use WW, is there a swagging die?