If had to come up with a list of the greatest grouse guns of all time, a 20 gauge Browning Superlight over-under like this one would be on it for a number of reasons: It’s lightweight (5lbs, 11oz), it has modern dimensions (1 3/8″ x 2 1/8″ X 14 1/8), it has 2 3/4″ chambers, and it has one of the most reliable single triggers ever made.
This one is on Gunbroker.com now and auction end on 9/4/2013 @ 8:31:51 PM ET. So if you like the looks of it, get on it now.
20 gauge Browning Superposed Superlight O/U Shotgun: Browning Superposed Grade 1 Superlight 20 ga. Serial number 59225V70. Excellent original finishes with minor bluing loss and just a few handling marks in the wood. Very attractive and tight gun. The wood finish is crazing and can be seen when held in the right light. Barrel length is 26 1/2 and measures as follows: Bottom .619 (.005) Top .619 (.005). Barrels are marked mod/full and clearly have been opened to skeet. The stock is crack-free and measures 14 1/8 to a Browning plate, 1 3/8 drop at comb, and 2 1/8 drop at heel. Overall, the gun weighs 5 lbs 11 oz.