Recall page is here. If you were somehow lucky enough to find .22 ammo, I hope it wasn’t this stuff:
Olin Corporation, through its Winchester Division, is recalling two (2) lots of M*22™ 22 Long Rifle 40 Grain Black Copper Plated Round Nose rimfire ammunition.Symbol Number: S22LRTLot Numbers: GD42L and GD52L
Winchester has determined the above lots of 22 Long Rifle rimfire ammunition may contain double powder charges. Ammunition with double powder charges may subject the shooter or bystanders to a risk of serious personal injury and/or death, or cause firearm damage, rendering the firearm inoperable.
That would leave a mark that would not buff out.