What kind of bullets are you using? Does your brass prep include chamfering the trimmed cases before bullet seating? I've reloaded a lot of .30-30 and never had this kind of issure. I have had a similar problem with 7.62x54r and .303 British, both of which are rimmed cases, but those problems happened during the sizing operation, not bullet seating.
Last edited by TJm15.38; 04-01-2024 at 02:01 PM.
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