Ended up inheriting my grandpa's German 270 Weatherby. While at a gun show today a gentleman ended up having a synthetic stock for it. He said it might be a Bell and Carlson. Anyways for $150 it was a good deal. On the front of the stock there is a small chanel. In this small chanel there WAS a long screw and a piece of plastic. The guy said it was to adjust the harmonics of the rifle. Well after an hour of walking around the show floor I lost the screw piece. Anyone know what brand this stock is so I can replace the part?