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/Whispersfine]

It not dirty. It’s the true color of the case. These are not copper cases, it’s copper plated steel.

In other words. Copper washed steel case

[u/Spread-Hour → u/Whispersfine]

WHY DONT THEY JUST KEEP THEM STEEL THEY LOOK SO COOL

[u/Tiflotin → u/Spread-Hour]

Cuz steel rusts

[u/Popfartshart → u/Tiflotin]

Deez nutz

[u/AdFar7781 → u/Spread-Hour]

WHY ARE WE YELLING!?

[u/IPSC_Canuck → u/Spread-Hour]

Part corrosion protection, part spark protection, partly because the copper seals against the chamber.

[u/Spread-Hour → u/IPSC_Canuck]

Oh come onnn cant they use another cheap alternative that keeps the steel color?

[u/IPSC_Canuck → u/Spread-Hour]

You can get painted cases. That are graphite… i’m not a fan.

This works well.

[u/Scary-Detail-3206 → u/Spread-Hour]

Old Barnal ammo used to use plain lacquered steel cases

[u/Fresh-Efficiency-352 → u/Scary-Detail-3206]

But barnaul is built to a far better standard and the laquer coating on them helps them seal much better