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Rifles, Reloading, Optics, Equipment
Gunsmithing
Cooper and carbon fouling.
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<blockquote data-quote="tobnpr" data-source="post: 2398048" data-attributes="member: 68758"><p>Comments above echo my initial reaction.</p><p>IF that's just ahead of the leade, appears to be typical erosion- and wouldn't be a factor for copper buildup.</p><p></p><p>Clarify where the borescope was when the pic was taken? If it was just ahead of the chamber take some additional shots further down the barrel. I've never seen anything like that (in cut, button, or hammer forged) other than as firecracking.</p></blockquote><p></p>
[QUOTE="tobnpr, post: 2398048, member: 68758"] Comments above echo my initial reaction. IF that's just ahead of the leade, appears to be typical erosion- and wouldn't be a factor for copper buildup. Clarify where the borescope was when the pic was taken? If it was just ahead of the chamber take some additional shots further down the barrel. I've never seen anything like that (in cut, button, or hammer forged) other than as firecracking. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Gunsmithing
Cooper and carbon fouling.
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