I've been shooting S&B 7 1/2 shot in my Saiga 20 ga.,I put it back in th truck last week ,got it out today to field strip it and it had rust on the gas piston,chamber,and the threads on the gas regulator plug.The plug was kind of hard to get out.I checked my Rem. 12 ga 11-87 and it had some rust in the chamber and around the gas ports on the barrel.I shot S&B's in it dove season.I've never heard of new production corrosive shotgun ammo.Anyone else had this to happen?
JEFF
JEFF

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