So I've got a round or two of ammo lying around because they've managed to get a deep enough scratch that you can feel it on the casing or have been dented a tiny bit by a magazine lip.
Am I being over cautious not using these rounds because of their condition?
If you can post pics, let's see them. From your description, I think you can probably shoot them. I had a .22 LR with a big enough dent in the case that it took effort to push it into a revolver cylinder. It went *bang* just fine.
I dont think any single cartridge, no matter how expensive, is worth the price and permanent disfugurment of a exploding gun.