When I first bought my SKS a got a bunch of non-corrosive Norinco for $5 for a 20 round box. The thing is you really shouldn't be afraid of corrosive ammo. It's not like you shoot a mag of it and the rifle explodes. lol! All you need to do is just put a little warm soapy water through the parts that are exposed to the powder and your fine. In fact if you only use just water you kill 90% of the corrosive salts. In fact its really the primers that are corrosive. Just be sure to get the gas system and you should be good to go. Alot of commie bloc ammo is corrosive but I've never heard of AK's and SKS's or mosin-nagants disintegrating to dust because of it.