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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Talk me out of a 7mm rem mag
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<blockquote data-quote="6.5-300 BEE" data-source="post: 1894840" data-attributes="member: 113845"><p>Yup about 26". Most don't know how belted cartridges started. The Brits hunted in nasty wet humid places with corrosive primers and nitro powder. When you're running in those conditions, hunting things that bite/stomp the cartridge MUST chamber. Solution: make cartride way undersize and stick a belt on it for headspacing. Not really necessary in the USA and for best accuracy most set up to headspace on shoulder. For hunting I still use new 300 WinMag brass as it is still made undersized. Hunting accuracy is still just fine and there are no chambering surprises. As an aside my 280AI has a 28" bbl, my 7x61 a 26" and BOTH equal 7mm RM factory loads from a 24" bbl.</p></blockquote><p></p>
[QUOTE="6.5-300 BEE, post: 1894840, member: 113845"] Yup about 26". Most don't know how belted cartridges started. The Brits hunted in nasty wet humid places with corrosive primers and nitro powder. When you're running in those conditions, hunting things that bite/stomp the cartridge MUST chamber. Solution: make cartride way undersize and stick a belt on it for headspacing. Not really necessary in the USA and for best accuracy most set up to headspace on shoulder. For hunting I still use new 300 WinMag brass as it is still made undersized. Hunting accuracy is still just fine and there are no chambering surprises. As an aside my 280AI has a 28" bbl, my 7x61 a 26" and BOTH equal 7mm RM factory loads from a 24" bbl. [/QUOTE]
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Talk me out of a 7mm rem mag
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