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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
WARNING: NORMA "Whitetail" 6.5 Creedmoor 140gr. SP ammunition- Overpressure!
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<blockquote data-quote="squarefour" data-source="post: 2336924" data-attributes="member: 119214"><p>So I had a similar problem as the OP with my 6.5CR AR10, and it turned out to be because my bullets were jammed too far into the lands, even at 2.80" COAL. For some reason AR barrels have crazy shallow throats. With 123 FMJs my COAL to lands is 2.55". Unfortunately I didn't figure this out until I got a second barrel with exactly the same throat. I have a 6.5CR Tikka barrel and the throat is visibly deeper with a borescope.</p></blockquote><p></p>
[QUOTE="squarefour, post: 2336924, member: 119214"] So I had a similar problem as the OP with my 6.5CR AR10, and it turned out to be because my bullets were jammed too far into the lands, even at 2.80" COAL. For some reason AR barrels have crazy shallow throats. With 123 FMJs my COAL to lands is 2.55". Unfortunately I didn't figure this out until I got a second barrel with exactly the same throat. I have a 6.5CR Tikka barrel and the throat is visibly deeper with a borescope. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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WARNING: NORMA "Whitetail" 6.5 Creedmoor 140gr. SP ammunition- Overpressure!
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