sks ejecting very dirty brass

[u/Spiritual_Rope_6952]

i have a chinese sks, cosmoline all cleaned up, but when i shoot it (norinco non-corrosive) the cartridges come out all dirty with some kind of soot all over them. is that normal? otherwise it works perfectly and ive never had a jam. ive just never seen a semi auto ejecting brass so dirty before

[u/0672216]

Dirty commie cartridges in a dirty commie rifle. Lolol.

Both mine are the same. Cartridges come out covered in soot. Guess it’s a feature.