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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="nkyshooter" data-source="post: 2091484" data-attributes="member: 83787"><p>Was your "first firing" a forming load using 280 Rem cases as opposed to 280 AI? If so, then it seems you are experiencing case head separation resulting from excessive headspace between the standard 280 and the AI dimensional differences.</p><p></p><p>The "jam" for fire forming may be a hard requirement for your particular rifle ... I use the jam method when forming my 260 AI brass but I also know there are some subtle differences with the 280AI as compared to other AI's since SAAMI made some modifications beyond the straight AI approach when they standardized it - someone with way more knowledge than me will be much better equipped to provide more on that if you want.</p><p></p><p>I'd be interested to hear more information about the rifle itself ... brand? ... all factory? ... aftermarket barrel? ... who headspaced it? By definition, 280 Rem (non-AI) saami spec is safe (i.e. won't result in case head separation) when fired in the AI chamber ... </p><p></p><p>Based on what the above info is, I may be leaning even further towards a potential headspace problem that will not go away with changing out the brass ... I'd want to get this figured out on the "less valuable" nosler brass before using or fireforming on the more expensive stuff ... not to mention the safety concern ...</p><p></p><p>Just my $.02 ...</p></blockquote><p></p>
[QUOTE="nkyshooter, post: 2091484, member: 83787"] Was your "first firing" a forming load using 280 Rem cases as opposed to 280 AI? If so, then it seems you are experiencing case head separation resulting from excessive headspace between the standard 280 and the AI dimensional differences. The "jam" for fire forming may be a hard requirement for your particular rifle ... I use the jam method when forming my 260 AI brass but I also know there are some subtle differences with the 280AI as compared to other AI's since SAAMI made some modifications beyond the straight AI approach when they standardized it - someone with way more knowledge than me will be much better equipped to provide more on that if you want. I'd be interested to hear more information about the rifle itself ... brand? ... all factory? ... aftermarket barrel? ... who headspaced it? By definition, 280 Rem (non-AI) saami spec is safe (i.e. won't result in case head separation) when fired in the AI chamber ... Based on what the above info is, I may be leaning even further towards a potential headspace problem that will not go away with changing out the brass ... I'd want to get this figured out on the "less valuable" nosler brass before using or fireforming on the more expensive stuff ... not to mention the safety concern ... Just my $.02 ... [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Do I throw away this whole lot of brass?
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