I don't know that, but for the rusty nail test I took apart one round of American Eagle 7.62x39 to use as the known non-corrosive control of the experiment. The American Eagle bullet has a flat base whereas the Chinese non-corrosive ones have boat tails. Just thought it was interesting.
I hear you. That was my opinion as well. At least before I tested it out myself. The Chinese crate came with absolutely no indications anywhere in its packaging that it was non-corrosive. I was very sceptical about the Lever Arms claim. So I tested it out. It's been 2 weeks that those nails have been sitting on top of my dryer in the laundry room (for temperature and humidity) coated in fired primer residue and there is no sign of rust on them. After 48 hours of no signs, I thought that I might have picked some nails with some kind of special anti-rust coating. So I grabbed another nail from the same box and dipped it in salt water. This one did rust. I'm happy and confident to conclude that it is indeed non-corrosive.
