Stephen,

Some of my buddies use this shotgun and you are right, 20 inches. This is an add from Dixie Gunworks.

Pedersoli Coach Shotgun

The Coach gun is a halfstock w/ checkered wrist and European walnut stock. The barrel is a double barrel, 12 gauge, blued 20", tapered round. Smoothbore - .720 bore diameter, cylinder bore (both barrels). Front sight - brass bead. Features blued steel buttplate, trigger & barrel thimbles. Color casehardened locks, triggerguard, tang, entry thimble & wedge plates. Engraved locks & tang. Manufactured by Pedersoli/Italy.

Works just fine on horse back!

Gary D. Bray