Thread: Case head separation imminent

Originally Posted by Padox

I understand what causes it vc I just can't understand y 1 lot would do it and the other half of the batch hasn'tAttachment 209399so 1s on the left have separated 1s on right were pulled but same batch

Measure those fired cases vs the ones you pulled as per Cigars picture above to a mid point on the shoulder.
If you don't have a ogive measuring set or something you could use a short bit of tube or a 44mag case or whatever will go over the neck and meat the middle of shoulder.
The actual measurement is not important as long as it's fairly repeatable and you can compare the two.