I know the shorter the barrel the more damage it does to your ears if your not wearing plugs. Many of the 10 gauges they started making in 26" barrel. Quicker swing supposed, but I like the longer sight picture of the 28-30" barrels. You can control the spread of the pattern with the choke being used. My dad has a shot gun with a 6' barrel. Its fairly quite to shoot, novelty or pass shooting piece.