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musher · February 11, 2013, 10:08 AM

The pink cases have lost some of the alloying zinc in the brass and are indeed weaker.

Zinc is sacrificial to just about everything in galvanic corrosion. Pretty easy to imagine losing zinc in a case laying about on the ground.

February 11, 2013, 10:08 AM	#4
musher Senior Member Join Date: April 23, 2005 Posts: 462	The pink cases have lost some of the alloying zinc in the brass and are indeed weaker. Zinc is sacrificial to just about everything in galvanic corrosion. Pretty easy to imagine losing zinc in a case laying about on the ground.