There are quite a few multibarreled sets out there. Not many made any more since tubes are the vouge now! Remington 3200, Winchester 101, Browning, Citori and Superposed, Marrochi/Friggon, Beretta, SKB, and the more obvious Beretta, Krieghoff, and Perazzi. These are just the ones I know are arround. Most of them can't be bought new anymore. Me, I went the multi gun route. I shoot a Beretta 686E for 20 ga and will probably use it for 12 if I decide to shoot 12 ga events. I also have a matching pair of Sig/Rizzini O/Us in 28 and .410. They handle and feel a lot like my Beretta. If I get really serious about this, I'll probably have Briley make tubes for the Bretta 20 ga for 28 and .410. Just to make you sick, I passed on a pretty nice, barley used Browning citori 4 barreled set in a hard case a couple years ago for, $1700! Why you asked?? They were 26" barrels and I thought I wanted 28 or 30. You live and learn! Well, maybe you learn?
BP