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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
cooper 280 ai
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<blockquote data-quote="J E Custom" data-source="post: 1024083" data-attributes="member: 2736"><p>Once a SAMME specification is excepted, All reamer manufactures and rifle manufactures have to comply. </p><p></p><p>They may alter the SAMME spec. but they have to identify the change on the cartridge designation </p><p>on the barrel.</p><p></p><p>So if it says 280 AI, it should be the SAMME Spec. chamber. But only a head space gauge will prove what it really is.</p><p></p><p>If you can borrow or buy a 280 Remington (Not the 280 AI gauge) you can check head space.</p><p></p><p>The SAMME AI is .014 to .018 shorter than the 280 Rem. (You can compare them on this site.</p><p><a href="http://www.saami.org/PubResources/CC_Drawings/Rifle/280%20Ackley%20Improved.pdf" target="_blank">http://www.saami.org/PubResources/CC_Drawings/Rifle/280 Ackley Improved.pdf</a> </p><p></p><p>And <a href="http://www.saami.org/PubResources/CC_Drawings/Rifle/280%20Remington%20-%207mm%20Express.pdf" target="_blank">http://www.saami.org/PubResources/CC_Drawings/Rifle/280 Remington - 7mm Express.pdf</a></p><p></p><p>J E CUSTOM</p></blockquote><p></p>
[QUOTE="J E Custom, post: 1024083, member: 2736"] Once a SAMME specification is excepted, All reamer manufactures and rifle manufactures have to comply. They may alter the SAMME spec. but they have to identify the change on the cartridge designation on the barrel. So if it says 280 AI, it should be the SAMME Spec. chamber. But only a head space gauge will prove what it really is. If you can borrow or buy a 280 Remington (Not the 280 AI gauge) you can check head space. The SAMME AI is .014 to .018 shorter than the 280 Rem. (You can compare them on this site. [url]http://www.saami.org/PubResources/CC_Drawings/Rifle/280%20Ackley%20Improved.pdf[/url] And [url]http://www.saami.org/PubResources/CC_Drawings/Rifle/280%20Remington%20-%207mm%20Express.pdf[/url] J E CUSTOM [/QUOTE]
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cooper 280 ai
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