A Punt Gun, used for duck hunting but were banned because they depleted stocks of wild fowl; ca. 1920’s.
Called the “Punt Gun,” this firearm of unusual size could discharge over a pound of shot at a time, and dispatch upwards of fifty waterfowl in a single go. A punt gun is a type of extremely large shotgun used in the 19th and early 20th centuries for shooting large numbers of waterfowl for commercial harvesting operations and private sport. “Used for duck hunting” isn’t the right expression for aiming this piece of artillery in the general direction of a flock of ducks, firing, and spending the rest of the day picking up the carcasses.
How they were used: