Hevi-Shot Hevi-XII 410 Bore 3in #5 1/2oz Waterfowl Shotshells - 25 Rounds - Pack in with Hevi-XII and come out carrying extra weight. Loaded with HEVI-Shot's original 12 g/cc tungsten that's 53.8 percent denser than steel, these loads double the downrange energy, hitting birds harder from a longer distance. This means you can drop three shot sizes for the same lethality and still put 28 percent more pellets on target. Features: HEVI-Shot's original 12 g/cc tungsten pellets that are 53.8 percent denser than steel High velocities More lethal pellets in a tighter pattern Improved cold-weather performance 100 percent nontoxic Outperforms steel in every category