I have an old (not sure how old, but old) long barrel Mauser that was my dads. It wasn't stored very well and is rusted some. Would like some advice on what sort of refinishing I should do/have done. I've done a little hand bluing work so I'm not a complete novice, but this gun is special to the family. I would like to give the gun to my brother as a present. Thanks! I enjoy this forum very much.