jj may be right. The 1st load of ammo I got for my MAK 90 was the Norinco corrosive ammo in the sealed 600 round (sardine), cans. It was all on stripper clips but I believe all that ammo was prohibited from further importation. Too bad too. The corrosive aspect of it is no big deal as long as you wash out the bbl and gas tube with soap and water after using and it has chronographed higher than any other 7.62x39 I've used.