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Rifles, Reloading, Optics, Equipment
Reloading
7RUM case denting when firing (pic)
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<blockquote data-quote="Brain" data-source="post: 239044" data-attributes="member: 7343"><p>6mm: If the case neck clearance to the chamber was too tight, wouldn't that result in less gas being able to escape around it and also less pressure required for a proper seal? If I'm not thinking in the right direction here, please help.</p><p></p><p>Interesting ideas about faster powders and/or increasing the charge. After posting this topic I tested the same setup with increasing charges up to 98gr of Retumbo. They all did the same thing without any one more or less severe than the one pictured above. What is interesting is that this does not occur with the same powder charges when using deeper seated bullets. Using Hornady 162gr SST and SMK 175's, which seat deeper into the case neck than the VLD's, the problem is non-existent. </p><p></p><p>Could be that a faster powder would develop enough initial pressure to expand the case properly. I guess that's the next step to take if I want to seat VLD's at the lands with this barrel.</p></blockquote><p></p>
[QUOTE="Brain, post: 239044, member: 7343"] 6mm: If the case neck clearance to the chamber was too tight, wouldn't that result in less gas being able to escape around it and also less pressure required for a proper seal? If I'm not thinking in the right direction here, please help. Interesting ideas about faster powders and/or increasing the charge. After posting this topic I tested the same setup with increasing charges up to 98gr of Retumbo. They all did the same thing without any one more or less severe than the one pictured above. What is interesting is that this does not occur with the same powder charges when using deeper seated bullets. Using Hornady 162gr SST and SMK 175's, which seat deeper into the case neck than the VLD's, the problem is non-existent. Could be that a faster powder would develop enough initial pressure to expand the case properly. I guess that's the next step to take if I want to seat VLD's at the lands with this barrel. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
7RUM case denting when firing (pic)
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