On the way to the range yesterday, to test my XM177E2 clone with the new forward assist upper (after 25 years), stopprd at a dealers to pick up some ammo. They were in the middle of inventory, and had apparently found some Chinese (Norinco) and Malaysian stuff sitting in the back room. Bought a couple boxes of each, with the idea that if one or both shot well, I'd pick up more.
The Chinese stuff did pretty well. Perfect function, and accuracy on a par w/the W-W FMC stuf I often use.
Stay away from the Malasian tho. Failure to feed after failure to feed. Since it wouldn't send the bolt assy back far enough to engage the hold open on the last round, have to assume short recoil all the way. The stuff might function better in a 20" barrel, but not in the 11 1/2 incher on the piece I had.
On the other hand, if you come accross some of the Norinco stuff at a good price, you might consider getting it. Decent accuracy, excellent function, and the cases are boxer primed so you can reload 'em. For the same money they get for the steel case Russian ammo around here, not a bad deal.