Manganese Sulfide Stringers Bill

Different from slag, which may have been the Parker issue.

This was posted a long time ago by Robert Rambler. 1895 Ithaca Crass with damascus barrels that were being cleaned up for reblueing. Initially just a small pit on the surface of the barrels, quickly grew into what you see here as polishing continued. Inside the barrels are bright and smooth, giving no indication of a flaw.


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