Hi guy`s and gal`s
How does everyone work harden their copper cup`s? Rather words, what process, do you use, to work harden the copper cup`s after you have cut to length and run them through the dia, die? i assume that`s what you call it, and then the next process would be to work harden them, so as to make them a little more pliable. what do you use for heat, etc.
Maybe this subject has been brought up before, but I couldn`t find it on this forum. Thanks
bullet maker
