Stopping corrosion on exposed lead tip ammo in long term storage

[stansdds]

The surface of lead oxidizes over time when exposed to air. This oxidation layer does not penetrate like rust. The oxidized layer is actually inert and poses no issues other than cosmetic. 22LR bullets are either plated or coated in a lubricant, they are unlikely to oxidize and I would not remove the factory lubricant. If oxidation really bothers someone, vacuum packing is the best answer. Remove the air, no oxidation will occur.