Hi guys,

I am extremely new to reloading so please don't laugh me off the forum with a newbie question. I have just started cleaning alot of my brass and have been using corn cob media with a polish. I haven't even reloaded my first round yet. I have cleaned approximately 300-400 cases thus far. The media has started to turn gray. Before dumping it out and adding fresh stuff, my question is how long can I keep using it? Do I just keep going until it takes longer and longer to polish/clean the brass? Thanks for any input, I know its a dumb question, just curious......