I recently acquired a fair amount of 7mm Magnum ammo...about 240 rounds of late 1980s vintage Remington 175 gr. PSP Core-Lokt. A good bit of it had some light corrosion on the cases (now I wish I had taken a 'before' picture). Most were still packed in their original styrofoam blocks, but the cardboard boxes were gone (notice how most of the discoloration occurs on the portion of the cartridge case that protruded from the packing). After about an hour or so in the tumbler, this is fairly representative of what most of them look like; they feel smooth to the touch. These are representative of rounds that exhibited a somewhat higher level of corrosion, after a similar amount of time in the tumbler; they also feel smooth to the touch. So what do you guys think, is this ammo safe to shoot? If it makes any difference, I'd be shooting it though a Savage bolt gun.