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Old January 26, 2013, 01:54 PM   #24
Bart B.
Senior Member
Join Date: February 15, 2009
Posts: 6,318
243winxb, I agree that a soft batch of brass would make the difference. But bass that soft is typically too soft for cartridge brass intended for commercial rounds that'll be reloaded. I'm surprised the factory let that stuff out the door.

Other causes with factory ammo case heads extruding back into bolt face cutouts are too tight a bore, extremely hot powder temperatures and just a plain bad lot of ammo.
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