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/elnooboi]

It will eat it and spit it out, I had a full mag of random 7.62x39 ammo left for weeks up to months out at my range and it just went through them like nothing out of the ordinary. Don’t worry about the casings getting dirty, worry about the rifle and when you clean&treat it well it will do the same back, Well actually if you don’t treat it well it doesn’t affect the performance of the rifle anyways 🙏