Did it originally have an oil finished stock. Many refinishings involve waterproofing coating to improve weather resistance. Of course that is no excuse to do it poorly as you described. Klupps in The Drilling mentions maintenance to the oiled stock. First decide which is appropriate, or that you desire. There are still stains and finishes which can approximate "original." Messed up stock finish must first be removed correctly--particularly not to over-sand the piece. Scrapers CAN be much more conservative, even a sharp edge of glass to remove finish without removing any wood at all. I have preferences in stains and finishes, and whether and how to fill pores. Some modern finishes such as Permalyn can work wonders, but may in fact look a lot more luxurious than original varnishes, which may not in fact any longer be made. Steaming out dents or filling small gouges with lacquer stick may improve things as well. Some people don't mind if it ends up literally looking upgraded. Some want original. No one wants poorly done which is what is meant when someone belittles a piece by calling it "refinished." Most of the great stockmakers reservice their own clients' firearms, but may or may not take on an outsider restoration. Best of luck. Steve