In my world buckshot has a very limited and specific purpose, which is essentially when it becomes necessary to shoot a bear off your front step, and you don't want a bullet or slug going through the bear and blasting through a neighbor's wall. As a result I keep a few buckshot rounds in my sidesaddle. Earlier this year, I decided I would pattern the stuff I had which was 3" 15 pellet 00 Winchester loads, and a 3" 12 pellet 00 Hevishot loads, both fired from my cylinder bore Mossbereg 590. During the testing I fired from 5, 10, and 15 yards. In both cases the patterns roughly kept to the inch of spread per yard of range generality, but pattern density was another matter entirely. The Hevishot loads proved to have much denser pattern dispersion at all ranges, where the Winchester loads showed a distinct inclination to doughnut from my particular barrel. At 15 yards, with a center hold on the head of a bear, the bear's face would not be touched by the Winchester pellets, although it would probably cut his ears off. Guess which loads are in my sidesaddle now. I've decided to have my barrel tapped for screw in chokes over the winter, so I might be tempted to run this test again next year with a modified choke tube.