Choke Tubes for Home Defense Shotguns

Most shotguns with 18-20" barrels have a plain ol' cylinder bore with no choke. Is that a problem? There is some debate about whether defensive style shotguns loaded with buckshot can even benefit from choke tubes. We fired some test patterns to find out. Like... a whole bunch of 'em. Four different buckshot loads, four different choke sizes at five-yard increments from 5-25 yards.

VIDEO HERE  (11:25 minutes)