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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
280 AI (again)
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<blockquote data-quote="yawn" data-source="post: 811718" data-attributes="member: 13540"><p>And then there's this which fits with what Iv found with nosler brass in an original chamber. </p><p><a href="https://gunsmithtalk.wordpress.com/2012/07/17/280-ackley-improved-emperical-headspace-test/" target="_blank">https://gunsmithtalk.wordpress.com/2012/07/17/280-ackley-improved-emperical-headspace-test/</a></p><p></p><p> And so the discussion goes back and forth</p><p>.Brent you should try some Nosler brass. Measure the headspace with an appropriate gauge before and after and see if it grows after firing .Actually it would be prudent to measure 3 datums across the shoulder.</p><p>If there is indeed a 14thou difference then a properly fire formed case should end up at least .014 longer than a new case. In my case with a 280ai cooper it doesn't grow at all.</p></blockquote><p></p>
[QUOTE="yawn, post: 811718, member: 13540"] And then there's this which fits with what Iv found with nosler brass in an original chamber. [url]https://gunsmithtalk.wordpress.com/2012/07/17/280-ackley-improved-emperical-headspace-test/[/url] And so the discussion goes back and forth .Brent you should try some Nosler brass. Measure the headspace with an appropriate gauge before and after and see if it grows after firing .Actually it would be prudent to measure 3 datums across the shoulder. If there is indeed a 14thou difference then a properly fire formed case should end up at least .014 longer than a new case. In my case with a 280ai cooper it doesn't grow at all. [/QUOTE]
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280 AI (again)
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