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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Looking for insight on blown primers
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<blockquote data-quote="emp1953" data-source="post: 2869332" data-attributes="member: 71817"><p>The Semi-Auto on the IMI box suggests that the OP is using it as intended. It is also labeled as Match grade ammo so I'm seriously doubting the machine gun possibility. I have never had a primer exit a case. I've seen where a reloader has used european primers, then switched back to american primers (in the same cases) and have the primers start to back out. But never exit the case. Perhaps there is a new dynamic involved with the semi-auto action that adds to pressure since my experience is with bolt and single shot rifles. I agree that the ripped case head is due to the extraction starting before the case is done expanding. What if carbon buildup is holding the case a microsecond longer thus the case head damage.</p></blockquote><p></p>
[QUOTE="emp1953, post: 2869332, member: 71817"] The Semi-Auto on the IMI box suggests that the OP is using it as intended. It is also labeled as Match grade ammo so I'm seriously doubting the machine gun possibility. I have never had a primer exit a case. I've seen where a reloader has used european primers, then switched back to american primers (in the same cases) and have the primers start to back out. But never exit the case. Perhaps there is a new dynamic involved with the semi-auto action that adds to pressure since my experience is with bolt and single shot rifles. I agree that the ripped case head is due to the extraction starting before the case is done expanding. What if carbon buildup is holding the case a microsecond longer thus the case head damage. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Looking for insight on blown primers
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