The Firing Line Forums - View Single Post - never seen this talked about... corrosion on old unfired bulk brass

Ifishsum · January 24, 2013, 05:21 PM

I just dealt with the same thing, someone gave me about 1200 pcs of .223 brass and one of the containers of about 400pcs had been left uncovered in the shed. Has to be mouse urine, many of the cases near the top had nasty green corrosion on them like ammonia. I threw out the worst of them right away, tumbled the questionable ones and then re-inspected those again. Basically, if the spots felt rough at all I wouldn't trust them. Any corrosion on or near the case head was automatic reject, but if the spot was small and still smooth to the touch, I'll load them once and let 'em fly.

If you think there is any corrosion on the inside of the case I wouldn't load them at all.

January 24, 2013, 05:21 PM	#4
Ifishsum Senior Member Join Date: September 15, 2005 Location: Oregon Posts: 1,033	I just dealt with the same thing, someone gave me about 1200 pcs of .223 brass and one of the containers of about 400pcs had been left uncovered in the shed. Has to be mouse urine, many of the cases near the top had nasty green corrosion on them like ammonia. I threw out the worst of them right away, tumbled the questionable ones and then re-inspected those again. Basically, if the spots felt rough at all I wouldn't trust them. Any corrosion on or near the case head was automatic reject, but if the spot was small and still smooth to the touch, I'll load them once and let 'em fly. If you think there is any corrosion on the inside of the case I wouldn't load them at all.