Quote:
|
Imprecise but effective, for me.
|
Case necks do harden with firings. It is due to the neck being undersized by the die, then expanded by the neck expander when the decapping rod opens the neck back up.
I notice it when I size with a Lee collet die. When the necks get hardened enough they will not properly size due to the pressing of the collets.
If you do decide to anneal your necks, you can find a better method described
here.
As mentioned, annealing is a time/temperature relationship. The key is obtaining the correct temperature quickly enough to limit the affected area to the case neck/shoulder portion of the case. Using the 650 degree (F) Temp Stik, controls your heat input and avoids overheating the neck. Quickly cooling limits the affected area to the proper portion of the case.
Neck splits are just an indication of the neck brass getting hard and in need of annealing.