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22-250 brass has issues chambering

Could also be the expander ball (not sure if you're using one or not) dragging hard and pulling up on the neck as it goes thru. You can set bump with the expander ball pulled to make sure this isn't happening or lube the inside of the necks a little bit.
This exactly what was happening with my .308, I'm trying to bump the shoulder back 2 thousand and the case is growing 2 thousand. To solve my problem I got a Hornady Match Grade full length sizing due to replace the Hornady series ll sizing die. I was trying to full length size some brass that was once fired but not in my gun .problem solved
 
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