There was an annealing article years ago that I ascribe to. It specifically talked about neck tension neuralgiws elasticity in the neck of the case. Here are the questions I d like answered: You can easily over anneal cartage brass. You can easily get too much heat into the case head without pointing the torch at it. Get Barely legal redhead too hot and its ability to hold a bullet or it own shape under mild pressure are greatly compromised.
I have Facial neuralgias the effects of over annealing brass.