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Rifles, Reloading, Optics, Equipment
Reloading
Case web expansion help
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<blockquote data-quote="bigedp51" data-source="post: 1315665" data-attributes="member: 28965"><p>No offense or criticism intended Mikecr on what I have been saying or about to say.</p><p></p><p>I full length resize my cases and I think you neck size which effects our meanings in what we are posting. And because of this I think we need to say what sizing method is being used by the OP. </p><p></p><p>Example on a semi-auto like a AR15 and M1A the "full length" resized case should be .003 to .005 smaller in diameter than its fired diameter for reliable extraction. But since you are neck sizing I will assume you measure farther above the extractor groove where the case has expanded to meet the chamber walls. This is because you reach a point where this area will bind and drag on the chamber walls durring extraction. And at this point you use a body die to reduce the body diameter and bump the shoulder.</p><p></p><p>Bottom line I'm not sure if the OP is neck sizing or full length resizing "BUT" the title of the OP posting is "<strong>Case web expansion help"</strong> and this is just above the extractor groove and not further up the case. Clarification of what the OP is trying to do and where and why he is measuring would clear things up.</p></blockquote><p></p>
[QUOTE="bigedp51, post: 1315665, member: 28965"] No offense or criticism intended Mikecr on what I have been saying or about to say. I full length resize my cases and I think you neck size which effects our meanings in what we are posting. And because of this I think we need to say what sizing method is being used by the OP. Example on a semi-auto like a AR15 and M1A the "full length" resized case should be .003 to .005 smaller in diameter than its fired diameter for reliable extraction. But since you are neck sizing I will assume you measure farther above the extractor groove where the case has expanded to meet the chamber walls. This is because you reach a point where this area will bind and drag on the chamber walls durring extraction. And at this point you use a body die to reduce the body diameter and bump the shoulder. Bottom line I'm not sure if the OP is neck sizing or full length resizing "BUT" the title of the OP posting is "[B]Case web expansion help"[/B] and this is just above the extractor groove and not further up the case. Clarification of what the OP is trying to do and where and why he is measuring would clear things up. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Case web expansion help
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