<P> Shotguns for use against larger, slower targets generally have even shorter barrels . Small game shotguns, for hunting game like rabbits and squirrels, or shotguns for use with buckshot for deer, are often 56 to 61 cm (22 to 24 in). </P> <P> Shotguns intended for all - round hunting are a compromise, but a 72 to 74 cm (28 to 29 in) barrel pump - action 12 - gauge shotgun with a modified choke can serve admirably for use as one gun intended for general all - round hunting of small - game such as quails, rabbits, pheasants, doves, and squirrels in semi-open wooded or farmland areas in many parts of the eastern US (Kentucky, Indiana, Tennessee) where dense brush is less of a hindrance and the ability to have more reach is important . For hunting in dense brush, shorter barrel lengths are often preferred when hunting the same types of game . </P> <P> The extremely large caliber of shotgun shells has led to a wide variety of different ammunition . </P> <P> Shotshells are the most commonly used round, filled with lead or lead substitute pellets . </P>

When was the first over and under shotgun made