Ya unfortunately the finish will scratch easily, plus the wingmaster bluing is much nicer looking.
I use one of each and the Wingmaster barrel cleans up easier and looks better.
But from what I've read from hunters the only thing to remember is to clean it asap after it gets wet. Apparently flushing it in and out with wd-40 as soon as you can is enough, then rub oil into it when you're back in the cabin and you're gtg.
That Rust Check green-lidded can that says: "Coat and Protect" I've heard is good to use if you expect to be soaked. They also make a red-lidded can that can kill rust if you already have some.