It turned out non corrosive for me. Lever Arms has a pretty good deal (21 cents per round) for non-corrosive Chinese surplus here:
http://www.leverarms.com/chinese-mil...62x39-fmj.html
I got a crate to test it out back in December. Did the nail test and it came out non corrosive. But a more definitive test happened two weeks ago. I shot 275 rounds of this stuff on my 858 and waited 96 hours before cleaning it. It is indeed non corrosive.
I picked up 1500 Rounds of non-corrosive Chinese military surplus from Lever Arms a couple weeks ago at $325 and did the nail test also.. It is for sure non-corrosive.