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Rifles, Reloading, Optics, Equipment
Reloading
Do I throw away this whole lot of brass?
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<blockquote data-quote="Mikecr" data-source="post: 2091539" data-attributes="member: 1521"><p>The 280Rem neck-shoulder junction shows in my software as 2.199".</p><p>Drawings for 280AI show it at 2.182".</p><p>17thou shorter.</p><p></p><p>So the AI chamber should be considerably shorter at neck-shoulder, causing an interference fit(negative headspace) with new cases.</p><p>On firing this neck-shoulder should pull back a bit with increasing of shoulder angle, but there should be no body stretch back to boltface as it the case head should have been hard against the boltface. This is normal & good.</p><p></p><p>Here, either the chamber is wrong or there has been heavy die sizing prior to firing -that's muddling up the design plan.</p></blockquote><p></p>
[QUOTE="Mikecr, post: 2091539, member: 1521"] The 280Rem neck-shoulder junction shows in my software as 2.199". Drawings for 280AI show it at 2.182". 17thou shorter. So the AI chamber should be considerably shorter at neck-shoulder, causing an interference fit(negative headspace) with new cases. On firing this neck-shoulder should pull back a bit with increasing of shoulder angle, but there should be no body stretch back to boltface as it the case head should have been hard against the boltface. This is normal & good. Here, either the chamber is wrong or there has been heavy die sizing prior to firing -that's muddling up the design plan. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Do I throw away this whole lot of brass?
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