I’ve been trying a citric acid solution to clean brass lately. It worked great the first time. I cleaned some 308 and 9mm and they came out squeaky clean though not shiny. Today I cleaned about 120 mixed 9mm and 308 cases. Some of each came out with some pink coloring in them.
I think I used too much citric acid in my solution so I’ll cut back and try again. The best I can tell, this color indicates mild zinc loss from the brass. I picked about 15 9mm and 4 308 cases out that had some sign of pink coloring. The rest didn’t show any visible signs.
I think I used too much citric acid in my solution so I’ll cut back and try again. The best I can tell, this color indicates mild zinc loss from the brass. I picked about 15 9mm and 4 308 cases out that had some sign of pink coloring. The rest didn’t show any visible signs.