JD
When I've had this problem, it was caused by a slight burr
Monday, December 21, 2020, 00:38

When I had this problem with several batches of Starline cases, it was caused by a slight burr on the inside of the case mouth. The burr seems to grab the expander and doesn't let go. I solved the problem by sizing the case and then lightly deburring the inside of the case mouth to remove the offending burr. Once that was done the problem went away.


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