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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Scratch in chamber
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<blockquote data-quote="jsali" data-source="post: 78279" data-attributes="member: 3866"><p>I had some 400 grit wet/dry paper and split a wooden dowel (1/3")at the end. Then I folded a small patch sized piece of the paper and put it into the split. I put the dowel into the chamber and gave it about 20 spins by hand. The only pressure on the paper was the paper trying to unfold. It polished the inside of the chamber up. The scratch is still there however it looks slightly smoother and there is no burrs on its edges. The chamber was tight to begin with and I could not detect any loosening. Is 400 grit paper too fine. I have heard that if the chamber is too smooth the cartridge will not grip on expansion. Any input would be appreciated. </p><p></p><p>-John</p><p></p><p>P.S. The chamber is .300 win mag.</p></blockquote><p></p>
[QUOTE="jsali, post: 78279, member: 3866"] I had some 400 grit wet/dry paper and split a wooden dowel (1/3")at the end. Then I folded a small patch sized piece of the paper and put it into the split. I put the dowel into the chamber and gave it about 20 spins by hand. The only pressure on the paper was the paper trying to unfold. It polished the inside of the chamber up. The scratch is still there however it looks slightly smoother and there is no burrs on its edges. The chamber was tight to begin with and I could not detect any loosening. Is 400 grit paper too fine. I have heard that if the chamber is too smooth the cartridge will not grip on expansion. Any input would be appreciated. -John P.S. The chamber is .300 win mag. [/QUOTE]
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Scratch in chamber
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