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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
280AI with too much head space...options?
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<blockquote data-quote="Seabeeken" data-source="post: 1924597" data-attributes="member: 68015"><p>Whether its SAAMI or traditional makes no difference. Both "versions" close snug on a 280 Rem factory case and if both have a 40* shoulder they must be the same. Nosler simply measures headspace at a different point than Ackley did which created this headspace myth. Ackley said the standard 280 Rem go gauge became the no go gauge in the ackley chamber. If your firing pin is driving the 280 Rem case forward enough to misfire, I'd say there is excessive headspace and it needs to either have the barrel setback and rechambered or rebarreled. My SAAMI 280ai closes on a 280 rem case without issue and forms nicely.Continuing to fire form brass in your rifle could result in a case separation. For those who believe that BS about there being 2 different 280 ai chambers, here is a video from a reamer maker to explain. [MEDIA=youtube]Vlskn2CE7-Y[/MEDIA]</p></blockquote><p></p>
[QUOTE="Seabeeken, post: 1924597, member: 68015"] Whether its SAAMI or traditional makes no difference. Both "versions" close snug on a 280 Rem factory case and if both have a 40* shoulder they must be the same. Nosler simply measures headspace at a different point than Ackley did which created this headspace myth. Ackley said the standard 280 Rem go gauge became the no go gauge in the ackley chamber. If your firing pin is driving the 280 Rem case forward enough to misfire, I'd say there is excessive headspace and it needs to either have the barrel setback and rechambered or rebarreled. My SAAMI 280ai closes on a 280 rem case without issue and forms nicely.Continuing to fire form brass in your rifle could result in a case separation. For those who believe that BS about there being 2 different 280 ai chambers, here is a video from a reamer maker to explain. [MEDIA=youtube]Vlskn2CE7-Y[/MEDIA] [/QUOTE]
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280AI with too much head space...options?
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