I used to believe in cycling self defense ammo, shoot it up and buy fresh. Today with the scarce availability of good self defense ammo like Hydra-Shok, (backordered till December), that isn't as viable as it used to be. So over time, ammo becomes tarnished. On a whim, I poped a round out of my mag yesterday and cleaned it with a bit of Brasso on a paper towel. It shined up like new money. Do you see a problem with this as long as you use it scarcely and keep it away from the primer pocket, or better left alone?