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Rifles, Reloading, Optics, Equipment
Reloading
280 AI Question
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<blockquote data-quote="MudRunner2005" data-source="post: 1203634" data-attributes="member: 12995"><p>Since it is a beltless cartridge, it headspaces off the shoulder. Factory new brass has to fit millions of chambers, so it is formed slightly smaller than SAAMI specs so it will universally fit everyone's gun. Beltless cartridges will need to be fire-formed to your individual chamber to get a precision headspace measurement from the cartridge base to either the ogive (which I recommend) or to the end of the bullet.</p><p></p><p>That being said, if your AI chamber is setup properly, you should be able to use a regular 280 Remington Hornady case gauge, since the neck/shoulder junction spacing should be the same. I use a regular .25-06, .30-06, and .300 Wby headspace gauges for my .25-06 AI, .30-06 AI, and .300 Ackley. So, I would say that you could probably get away with using a regular .280 Remington cartridge gauge.</p><p></p><p><a href="http://www.midwayusa.com/product/788514/hornady-lock-n-load-overall-length-gage-modified-case-280-remington-7mm-express" target="_blank">http://www.midwayusa.com/product/788514/hornady-lock-n-load-overall-length-gage-modified-case-280-remington-7mm-express</a></p></blockquote><p></p>
[QUOTE="MudRunner2005, post: 1203634, member: 12995"] Since it is a beltless cartridge, it headspaces off the shoulder. Factory new brass has to fit millions of chambers, so it is formed slightly smaller than SAAMI specs so it will universally fit everyone's gun. Beltless cartridges will need to be fire-formed to your individual chamber to get a precision headspace measurement from the cartridge base to either the ogive (which I recommend) or to the end of the bullet. That being said, if your AI chamber is setup properly, you should be able to use a regular 280 Remington Hornady case gauge, since the neck/shoulder junction spacing should be the same. I use a regular .25-06, .30-06, and .300 Wby headspace gauges for my .25-06 AI, .30-06 AI, and .300 Ackley. So, I would say that you could probably get away with using a regular .280 Remington cartridge gauge. [url]http://www.midwayusa.com/product/788514/hornady-lock-n-load-overall-length-gage-modified-case-280-remington-7mm-express[/url] [/QUOTE]
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280 AI Question
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