I wouldn't trust it for that.
I'd be concerned about dust from some of the abrasives/polish being in there.
I doubt it would polish away the tolerances of the die or even the brass being rubbed with it too much.
I just don't like the idea of any abrasives left on the brass and possibly getting on the ram.
Maybe it's just an old habit from working on airplanes and everything being squeaky clean.
After tumbling, I always rinse the cases in Lacquer thinner.
There's a fair amount of grit that washes off them.