Dirty ammo or corrosion?

[pharmer9]

Hi, ordered some Federal HST and received several boxes of rounds looking like this. I don't know if its just dirty or its corrosion. I tried to wipe it with a paper towel, degreaser, and Hoppes 9. Also tried a kitchen scrub pad. Only thing the Hoppes 9 did was lighten the marks but also made the bullet lighter also. Insights? Thanks.

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[WMG]

From here that looks like tarnish , see if lemon juice removes it.
If it is tarnish ... I know they don't look pretty but I'd rather NOT go wiping defense ammo down with solvents and just let them be.
I've had a ton of HST ammo and never seen any like this.
But copper can/will tarnish

[baih777]

Awwhhhh.
I just ordered 200. You could consider taking pics of the ammo and sending them to the mfg and ask if this is normal.

[pharmer9]

I have emailed the vendor and awaiting a reply.

I only used the Hoppes 9 as a test. Not planning on using that particular round.

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[pacrat]

Choot Em!