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Discolored brass

2471 Views 4 Replies 3 Participants Last post by  Indyarms, 
L
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.

Larry

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I
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!!
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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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