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Rifles, Reloading, Optics, Equipment
Gunsmithing
700 Bolt Extraction Problem
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<blockquote data-quote="Hugnot" data-source="post: 2237511" data-attributes="member: 115658"><p>My simple thinking is:</p><p></p><p>The extractor is a thin, flexible spring steel designed for push feed (snap over rim) actions. .270 W brass rim thickness should be .045 - .050 for a total back from base to start of groove of about .110, meaning a huge amount of head space to allow the edge of the extractor to miss getting into the groove on the brass. With this amount of head-space and the ejector pushing on the base of the case and a firing having protrusion of about .065 would not set off the primer. </p><p></p><p>I messed around with a variety of M700's, enough to be real critical of extractor worth. Our M700 is a single shot .22-250 rodent rifle & if the extractor fails the 1st time no big deal, just re-cycle again.</p></blockquote><p></p>
[QUOTE="Hugnot, post: 2237511, member: 115658"] My simple thinking is: The extractor is a thin, flexible spring steel designed for push feed (snap over rim) actions. .270 W brass rim thickness should be .045 - .050 for a total back from base to start of groove of about .110, meaning a huge amount of head space to allow the edge of the extractor to miss getting into the groove on the brass. With this amount of head-space and the ejector pushing on the base of the case and a firing having protrusion of about .065 would not set off the primer. I messed around with a variety of M700's, enough to be real critical of extractor worth. Our M700 is a single shot .22-250 rodent rifle & if the extractor fails the 1st time no big deal, just re-cycle again. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Gunsmithing
700 Bolt Extraction Problem
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