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Rifles, Reloading, Optics, Equipment
Gunsmithing
Burr in chamber/pressure issue
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<blockquote data-quote="Gunpoor" data-source="post: 935713" data-attributes="member: 8358"><p>No, the burr in the chamber would not cause excessive chamber pressure. Seating the bullets out so far they encroach on the rifling may have caused flattened primers. I think you should test your barrel to see just how far off the lands you are loading these bullets. You don't say what your load is or even what bullet you are using, but if you are using "cup and core" bullets you need to seat them at least .010" off the lands in this cartridge, and if they are mono-metal bullets they need to be seated .040" - 050" off the lands. If you would post your loading info I am certain that others who reload for the 7RemMag could give more information.</p></blockquote><p></p>
[QUOTE="Gunpoor, post: 935713, member: 8358"] No, the burr in the chamber would not cause excessive chamber pressure. Seating the bullets out so far they encroach on the rifling may have caused flattened primers. I think you should test your barrel to see just how far off the lands you are loading these bullets. You don't say what your load is or even what bullet you are using, but if you are using "cup and core" bullets you need to seat them at least .010" off the lands in this cartridge, and if they are mono-metal bullets they need to be seated .040" - 050" off the lands. If you would post your loading info I am certain that others who reload for the 7RemMag could give more information. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Gunsmithing
Burr in chamber/pressure issue
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