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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
300 Win Mag custom rifle charlie foxtrot
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<blockquote data-quote="quigley257" data-source="post: 1001384" data-attributes="member: 84442"><p>I recently came across a guy displaying the same syptoms as you describe. It turned out to be the muzzle brake. For starters, the brake was installed incorrectly(not aligned properly). Next, the entire brake was bored too small. After measuring, I believe it was only .005" over bore diameter. There were times when the bullets were actually touching the brake and others when just the fouling buildup was enough to affect groups. Once that was fixed,(barrel cut off/rethreaded and brake reamed), all problems went away and the groups got nice and small. Good luck!</p></blockquote><p></p>
[QUOTE="quigley257, post: 1001384, member: 84442"] I recently came across a guy displaying the same syptoms as you describe. It turned out to be the muzzle brake. For starters, the brake was installed incorrectly(not aligned properly). Next, the entire brake was bored too small. After measuring, I believe it was only .005" over bore diameter. There were times when the bullets were actually touching the brake and others when just the fouling buildup was enough to affect groups. Once that was fixed,(barrel cut off/rethreaded and brake reamed), all problems went away and the groups got nice and small. Good luck! [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
300 Win Mag custom rifle charlie foxtrot
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