Yeah I thought so too, yet none of my carbon steel barrels have shown rust any quicker than my stainless.Corrosion?
Shinny bright bare metal stainless?
Cant imagine anyone actually needing to take advantage of any strenge or material differences. Then again I dont know enough to say what the real difference is.
Actually..none of my guns have shown rust period..so who knows...and thats including gear Ive run in rainy and cold classes and thrown back in a bag with light lube after.