Steel case 308

[cdlale]

I have a bunch of chinese steel case 308/7.62x51 ammo,The headstamp says 61,93. Is this stuff ok to use?
Thanks

[f4tweet]

http://cartridgecollectors.org/headstampcodes.htm

61 Unknown Factory, Peoples Republic of China

[bcrich]

Most likely it is corrosive so be sure to give her a good cleaning after you blast! those copper washed cases usually are corrosive, atleast the stuff I've shot