Best way to mark/color code brass?

[bassochist]

i made my own tool to mark brass fast and easy.

[tisch006]

I have seen guys that will paint or mark their brass so that after a stage, theirs can be identified for return to them. What is the best way to do this? I have seen stuff that is red or maybe black across the head, but what do they use to do this? Paint could gum up the action or breechface, maybe even the fireing pin, if you use the wrong stuff. What kind of paint would work? Will a marker work? Fingernail polish? What do you guys use? Is it better left alone?

Thanks for your thoughts.

Gene

I use a Lee case trimmer set-up in a drill. Give the case a spin while holding a sharpie to it. One ring = once reloaded, two rings = twice reloaded, etc.

Everybody teases me about my rings!