Two-barrel sets can be made the same or end up very different.
My old Super-Fox weighs something over 8 1/2 pounds with its original 32-inch Chromox Fluid Compressed Steel tubes in place, and a fraction of an ounce over nine pounds with the 28-inch Special Alloy -- Forged Steel barrels in place. It balances about 1 inch in front of the hinge with either set in place.
I also have a heavy 12-gauge Damascus barrel 2-Frame Parker Bros. GH-Grade that weighs a fraction of an ounce over nine pounds. It made a trip back to Meriden for a set of 32-inch 20-gauge 3-inch chamber Vulcan Steel barrels and with them in place it weighs 8 pounds 4.5 ounces. Totally different balance and feel.
In his column on 20-gauge guns in the September 1965 Outdoor Life (I'm working from memory here as I'm away from my library here at our northern home) Jack wrote that the best shooting he ever did with a 20-gauge was with a 30-inch barrel L.C. Smith, and then goes on to say how that gun was all wrong and how much better a 26-inch barrel Model 21 was?!?! My gut feeling is the L.C. Smith was probably lighter then the Model 21.
