Help ID this 7.62x39 ammo?

It is Chinese. It was sold as noncorrosive. We pulled a bullet, dumped the powder, and “shot” the primer on to a steel plate which did rust. So, we treated it as corrosive. YMMV.

With that color of 'brass' and a military head stamp, I would bet they are standard 125 or so grain bullet loaded to the standard velocity 2400 fps (more or less) and Berdan primers.

Copper-washed steel cased Norinco. Much of that stuff used steel-cored, copper jacketed bullets too as they were imported before all the "cop killer armor peircing" nonsense.

IIRC, they were 122gr bullets.

Yep. Norinco. $99 for a case of 1200 back in the day.

If it's Norinco you can probably sell it to "those guys" at a gun show for a high price because they believe it is armor piercing.

I consider all "surplus" 7.62x39 corrosive and I will wager your is. If not, a thorough cleaning after shooting is always a good thing.

Norinco for sure from back in the 90's. Still got some here that hasn't been fired yet. Recognized it right away. 122 grain and says lead core but I never checked it. Also says non-corrosive and there's never been any problems with that in a couple different SKS's but I always clean them thoroughly after firing. I never trust cheap, berdan primed, steel case stuff. Don't recall ever having any problem at all with them and they chronograph pretty much the same velocity as any other Chinese or Russian stuff. Forgot the price back then but it was cheap and I wound up with a couple thousand rounds. I have a couple boxes of the old steel core stuff around here also and it states on the box that it's steel core.