I have Winchester brand 243win brass and have sized and loaded them 6 times and now have 5 cases that have split necks. Am I doing something wrong? I'm using Forster FL dies and loading 42.0gr H4350.
Or is it a bad batch of brass? I noticed a couple that had what looked like a wrinkle in the neck. I didn't see 6 of them out of the 50 cases I was using.
Or is it a bad batch of brass? I noticed a couple that had what looked like a wrinkle in the neck. I didn't see 6 of them out of the 50 cases I was using.