mauser: buy some funiture stripper and wet down the stock let sit and use 000 steel wool to remove the tru oil finish.I use the stripper and you will see the bubbles start to lift ,then go at it with the steel wool,once you have all the true-oil off the stock wash the stock with water and use a hair dryer to remove all the water and let sit for a while to dry.
I then use some 1500 wet and dry paper to wet the stock and sand with the grain,then redry .for deep dentswarm iron and damp cloth will raise them flush and resand smooth.I like to sharpen the edges were the lock sits and the other side when the lock bushing and screw goes threw,take your time and use a good sanding block don't sand with your finger tips .I then like to use FORMBY'S TUNG OIL SATIN FINISH.
I find trying to hold the stock and apply the finish is too risky don't want to drop the stock on the floor I use a 6 inch screw that goes threw the lock screw bushing and bolt up with a nut,lot better to handle,get a nice clean tee shirt cloth about 4 inch square and apply the tung oil with the grain.I start at the butt and work forward one side at a time,tung oil is easy to apply but you can't go over the oil too many times without it drying . I like going with one pass up to or just pass the lock then start from the tip and go to the spot on the lock.I then start the other side butt to lock and tip to lock then finish the underside of the stock.I run about 4 wet coats then use 0000 and rub the tung oil off back down to the grain between coats let dry before using the steel wool.I then reapply the tung oil in even wet coats from butt to tip I run about 15 coats which with every coats just builds up to a low stain finish