When we were all buying cheap SKSs and cheap ammo twenty-five or thirty years ago, some of the ammo was advertised as "mildly corrosive". A friend shot some of this stuff and waited about three days to clean the bore. There was already evidence of minor pitting. Hoppe's or anything else is fine for corrosive as long as you use something water-based first.
Last edited by lotech; 03/18/19.
