My local gun store is running a special on 7.62x39 ammo for 2.99 a box. My hangup is that I do not know if it is corrosive. I asked the guy at the store and he did not know either. The box does not say non corrosive on it, so I cannot tell. It is Russian made hollow point ammo and I would like to buy some but I do not want run corrosive ammo through my guns. Anyone know if there is a way to tell if it is corrosive???