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Discolored brass

2471 Views 4 Replies 3 Participants Last post by  Indyarms
I purchased 400 rnds of range brass at a show. All brass has been cleaned. I noticed some of the brass has black stains on the cases. Wondering what may have caused this and are they safe to use.



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dirty fingerprints??? from the oils of the skin left on to tarnish??

As long as the structural integrity of the brass is fine, I would say they are FINE!!! If the stains come off with a little cleaning... no worries!!
Brass natuarally oxidizes to that rich brown color... it is the presence of caustic substances that will cause the copper in the brass alloy to turn it green... ( primers/powder)

I think a little tumbling will shine em right up and they will be just fine!

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