Its 2011 Chinese machinegun ammo. Brought in by Canada ammo in 1000rd crates. Originally advertised as noncorrosive, and priced accordingly. However when people started reporting corrosion after shooting it, canam being a great company that stands behind its products lowered its price to corrosive levels. I stocked up with few crates and shot may be 800 rds of it by now. this is how it is designed to shoot out of various Chinese made MG's and its capabilities listed in the crate sticker

Accuracy wise its what it is
Some lots shoot better some not. At first I had no luck with accuracy, but after some time I figured where to hold for this brand of ammo and my groups improved.
This is one of the groups I shot from my mosin with irons. I guess its good enough for my plinking.