Thread: Increasing case neck tension

Greetings,
I have seen this problem over and over again with the Lee Collet dies and the problem is always brass that is too hard. You need to anneal the necks after each third load max and better more frequently. The Collet dies produce very straight necks, which aid accuracy but do need brass that is not too hard. The die is not the problem it is the hard brass.
Regards Grandpamac.