Just acquired a SxS shotgun. I have cleaned the bores and they are very bright and clean. The exterior of the barrell has a couple spots that have some surface rust that I wanted to clean off. Can anyone explain the procedure for doing this. Thanks in advance for any input

I have used very fine steel wool and a few drops of gun oil to lightly go over surface rust areas. Be gentle or the bluing may come off as well. If so, then I would touch up the finish with cold blue. All the best...
Gil

Has anyone tried a chemical rust remover for cases like this? Would Liquid Wrench remove the rust without attacking the bluing? A call to Brownell's might come up with a suitable product.

I think I would try Kroil oil, PB Blaster, or Eds Red all are designed to get under rust/corrosion/fouling.

0000 steel wool and oil work just fine. I like to use the steel wool dry,then put the gun oil on. Like Gil said.Be gentle. If the rust is real deep you can use Navel Gel,but it likes to take the bluing with it.It's better to get all the rust out and re blue. If it is pitted you can use sandpaper.Start with 320grit then 600,then 1200,then steel wool it. Just make sure you oil it after your done.

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BackWoods Billy