I am sure this has been covered before, but I can't find it.
On some of my .40-65 cases, I have discovered BP fouling on the outside of the case neck. I understand this is a sign of the case neck being too hard. All of the cases are Starline brass and most have been fired only once.
Now for my question, I understand I need to anneal the cases but am not sure what the best way to do it is. Is heating the case neck cherry red with a torch and then quenching them quickly with water the best method? Or is there a better method?
Thanks in advance.