What is considered an acceptable level of case neck runout? I know we would all like to see zeros however, when that is not achievable what is considered acceptable. I remove the decapping pin and expander ball from the FL length die when I resize. I can have 0-.001 runout from the FL sizing die. However, when I expand the neck with a mandrel die and a gauge pin that is 0.002 less than the bullet diameter I get .003-.005" runout on the necks. I have tried allowing the mandrel die to float in the press so it will self align, however, don't see any improvement in the results.
