I use russian milsurp that's declared corrosive. Same with the 5.45 in my AK.
It's not as bad as many people think. I haven't cleaned my AK since the end of November, and I've put probably 20 mags through it since then. 600 rounds I guess, we'll call it. The Mosin I shot much less through, but I always cleaned it after shooting. The AK though I'm kind of just "testing" to see how it goes, and checking on it every couple days. Ain't no thing.
It's not as bad as many people think. I haven't cleaned my AK since the end of November, and I've put probably 20 mags through it since then. 600 rounds I guess, we'll call it. The Mosin I shot much less through, but I always cleaned it after shooting. The AK though I'm kind of just "testing" to see how it goes, and checking on it every couple days. Ain't no thing.