villemur
Member
I just ran the tumbler for about two hours with corncob media in it to tumble some .223 - mostly Lake City. The cases were pretty clean when they went in, I just wanted to put a polish on them. However, when I pulled them out almost all of the case heads and case rebates were coated with black schmutz. It was even on some of the cases.
Now this had happened about a month or two ago or so when I ran some LC .223. I ended up wiping the cases down with acetone to clean it off. I figured that my media was just too dirty. So I changed out the corncob and I've been running it since then. I've done quite a bit of reloading, but I figure that media should last longer than that, right?
I haven't had this happen yet with other calibers, it's just been .223. Has anyone else seen this? I do sometimes add a little Frankford Arsenal polish to my media, but I didn't for this particular batch.
Notice the third case from the right, it's clean. However, the last case even has it on the case wall. I probably had 125 cases in the tumbler.
What's the problem here?
Now this had happened about a month or two ago or so when I ran some LC .223. I ended up wiping the cases down with acetone to clean it off. I figured that my media was just too dirty. So I changed out the corncob and I've been running it since then. I've done quite a bit of reloading, but I figure that media should last longer than that, right?
I haven't had this happen yet with other calibers, it's just been .223. Has anyone else seen this? I do sometimes add a little Frankford Arsenal polish to my media, but I didn't for this particular batch.
Notice the third case from the right, it's clean. However, the last case even has it on the case wall. I probably had 125 cases in the tumbler.
What's the problem here?