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Rifles, Reloading, Optics, Equipment
Reloading
Pressure with Neck-Sized Brass but not Full Length Sized Brass?
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<blockquote data-quote="backwoods83" data-source="post: 723478" data-attributes="member: 29890"><p>I have seen this a lot with Norma and Nosler brass, the case heads are softer than most, I think that your high end charge in FL sized brass is expanding the cases to much and causing a crush fit in the chamber, with no room for expansion it tries to flow back into the ejector hole. How many firings are you getting before the primer pockets loosen, that'll tell you how much case head expansion you have, if you only get 2 or 3 loadings you need to back it off. NK size vs. FL has more internal capacity, I measure the h2o of new cases then measure one that is NK sized and typically have to come up in charge weight to duplicate, that's why I think its the crush fit issue.</p></blockquote><p></p>
[QUOTE="backwoods83, post: 723478, member: 29890"] I have seen this a lot with Norma and Nosler brass, the case heads are softer than most, I think that your high end charge in FL sized brass is expanding the cases to much and causing a crush fit in the chamber, with no room for expansion it tries to flow back into the ejector hole. How many firings are you getting before the primer pockets loosen, that'll tell you how much case head expansion you have, if you only get 2 or 3 loadings you need to back it off. NK size vs. FL has more internal capacity, I measure the h2o of new cases then measure one that is NK sized and typically have to come up in charge weight to duplicate, that's why I think its the crush fit issue. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Pressure with Neck-Sized Brass but not Full Length Sized Brass?
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