A firearm whose time has come and gone. The Germans had all sorts of multiple barrel long guns. Drilling, Bockdrilling, Buchsflinte, Dopplebockdrilling, etc. You name the combination, they tried it. I once owned an expensive Drilling. A beautiful gun, but like any hybrid, a compromise at best. Clumsy as a shotgun, clumsy, inaccurate and heavy as a rifle. Did I mention clumsy?
JMHO
Ray