The brass in question had been sized, so it had sizing lube on it. Unless sizing lube is corrosive (which I doubt), I would think this could only help. Also,I have brass many years older than this (some from the 70's) stored in the same fashion. It will, of course, tarnish with age; but a few hours in the tumbler brings it back to near new appearance. This Starline brass, in my humble opinion, has apparently corroded (which brass is not supposed to do). Also. I have other Starline brass, in other calibers, stored in the same fashion, and none of it looks like this. I will, however, amend my storage practices accordingly. No biggy, but just wanted to throw it out for discussion.
Last edited by fishhead1; August 15, 2013 at 07:35 PM.