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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
unexplained pressure
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<blockquote data-quote="JeffVN" data-source="post: 805817" data-attributes="member: 2261"><p>+1 on looking for a carbon ring. Regular cleaning cannot remove it. One way to tell (assuming you do not have a bore scope) is to pay close attention to when you run a patch (or brush) down your barrel. There will be resistance as you pass the ring, then much smoother progress down the bore after you get past it. I developed one in a .308 and a 7WSM. After doing so, regular loads were showing up with overpressure.</p><p></p><p>Here are a few articles about the carbon ring and its removal.</p><p></p><p><a href="http://benchrest.com/showthread.php?82146-Carbon-Ring" target="_blank">Carbon Ring</a></p><p></p><p><a href="http://forum.accurateshooter.com/index.php?topic=3789184.0" target="_blank">Carbon ring ?</a></p></blockquote><p></p>
[QUOTE="JeffVN, post: 805817, member: 2261"] +1 on looking for a carbon ring. Regular cleaning cannot remove it. One way to tell (assuming you do not have a bore scope) is to pay close attention to when you run a patch (or brush) down your barrel. There will be resistance as you pass the ring, then much smoother progress down the bore after you get past it. I developed one in a .308 and a 7WSM. After doing so, regular loads were showing up with overpressure. Here are a few articles about the carbon ring and its removal. [url=http://benchrest.com/showthread.php?82146-Carbon-Ring]Carbon Ring[/url] [url=http://forum.accurateshooter.com/index.php?topic=3789184.0]Carbon ring ?[/url] [/QUOTE]
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unexplained pressure
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