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Rifles, Reloading, Optics, Equipment
Gunsmithing
280 Ackley Chamber
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<blockquote data-quote="25WSM" data-source="post: 2099251" data-attributes="member: 38048"><p>[URL unfurl="true"]https://gunsmithtalk.wordpress.com/2012/07/17/280-ackley-improved-emperical-headspace-test/amp/[/URL]</p><p></p><p>If nosler made the chamber to have a crush fit on a standard round and do did Ackley then they are the same. If the nosler chamber is .014 short then a factory 280 would not close on the bolt. A no go guage is .004 longer and won't close. Add another .010 and it surely won't. When I chamber one with a standard go guage used as the no go and try the Sammi no-go fits exactly the same. If you chambered up a 280ai and made it .014 short from standard no 280 brass would fit period. The .014 number comes from measuring from 2 different spots on the neck. I assure you that I have made minimum headspace 280ais using a go guage as the no go and did another with the Sammi guage and the fired brass was identical. Look at the pictures and explanation in the article. Doesn't get any simpler than that. </p><p>Shep</p></blockquote><p></p>
[QUOTE="25WSM, post: 2099251, member: 38048"] [URL unfurl="true"]https://gunsmithtalk.wordpress.com/2012/07/17/280-ackley-improved-emperical-headspace-test/amp/[/URL] If nosler made the chamber to have a crush fit on a standard round and do did Ackley then they are the same. If the nosler chamber is .014 short then a factory 280 would not close on the bolt. A no go guage is .004 longer and won't close. Add another .010 and it surely won't. When I chamber one with a standard go guage used as the no go and try the Sammi no-go fits exactly the same. If you chambered up a 280ai and made it .014 short from standard no 280 brass would fit period. The .014 number comes from measuring from 2 different spots on the neck. I assure you that I have made minimum headspace 280ais using a go guage as the no go and did another with the Sammi guage and the fired brass was identical. Look at the pictures and explanation in the article. Doesn't get any simpler than that. Shep [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Gunsmithing
280 Ackley Chamber
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