So, I've finally got my hands on a Marlin 1894 in 357 mag. It is about 25 years old and has never been shot. It belonged to my grandfather until he sold it to me. My only issue with it is that the action is stiff and rough. I know that a lot of it would work out in use, but I was wondering if there's anything that I could do to make it smooth, and to try and prevent the Marlin Jam. What would y'all suggest? Oh, and I might try cowboy action shooting with it as well.