I've been testing on my T38 Arisaka. 6.5x50.
Lyman 140ge. I4198, 2400, I4227.
I reloaded the brass five times, and figured it was time to anneal the necks, before they split.
After I annealed them, I starting getting lots of black soot on the necks.
I thought annealing is suppose to make the brass softer.
I thought softer neck would seal better.
I wasn't getting the soot before annealing.
Didn't seem to affect the accuracy any.
Why am I getting the soot now?????