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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Case head separation with new Browning X- bolt 300 win mag.
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<blockquote data-quote="Orange Dust" data-source="post: 2888306" data-attributes="member: 92702"><p>Sounds like there is nothing wrong with the rifle and this is why belted mags get all the bad press. You have to treat it like rimmed brass. In other words. Factory loads and new brass are headspaced on the belt, just like a rimmed cartridge headspaces on the Rim. They both have generous clearance on the shoulder. None of this is good for case life. Both stretch at the web on the first firing. Handloaders wanting the cases to last more than a couple of firings can eliminate this by understanding it and properly fire forming the brass. This means supporting the case at both ends to fireform without it stretching in the middle. Been going on as long as rimmed and belted cases have been handloaded.</p></blockquote><p></p>
[QUOTE="Orange Dust, post: 2888306, member: 92702"] Sounds like there is nothing wrong with the rifle and this is why belted mags get all the bad press. You have to treat it like rimmed brass. In other words. Factory loads and new brass are headspaced on the belt, just like a rimmed cartridge headspaces on the Rim. They both have generous clearance on the shoulder. None of this is good for case life. Both stretch at the web on the first firing. Handloaders wanting the cases to last more than a couple of firings can eliminate this by understanding it and properly fire forming the brass. This means supporting the case at both ends to fireform without it stretching in the middle. Been going on as long as rimmed and belted cases have been handloaded. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Case head separation with new Browning X- bolt 300 win mag.
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