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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
280 AI
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<blockquote data-quote="cajun" data-source="post: 2701182" data-attributes="member: 9772"><p>The Nosler saami version the head space dimension is .014 shorter. There are various internet theories on why this happened. One is that they wanted to make sure anyone fire forming AI cases from regular 280 brass would not get excess headspace. As a result the old dies will not push the shoulder back on saami spec brass. The new dies should not be used on the old chamber brass or you can over size it.if you see Nosler 280 AI or 280 AI saami it is the new chamber. All production rifles and ammo are made to saami spec chamber.</p></blockquote><p></p>
[QUOTE="cajun, post: 2701182, member: 9772"] The Nosler saami version the head space dimension is .014 shorter. There are various internet theories on why this happened. One is that they wanted to make sure anyone fire forming AI cases from regular 280 brass would not get excess headspace. As a result the old dies will not push the shoulder back on saami spec brass. The new dies should not be used on the old chamber brass or you can over size it.if you see Nosler 280 AI or 280 AI saami it is the new chamber. All production rifles and ammo are made to saami spec chamber. [/QUOTE]
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280 AI
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