Federal Premium HEVI-Bismuth 12 Gauge 1 1/4 oz 2 3/4in Shotgun Ammo 3 Shot 25 Rounds PHBX144. Next is the propellants which are specially formulated to meet Federal's stringent specifications. These clean-burning powders are of the highest grades in the industry. They're consistent and reliable. The HEVI-Bismuth hits both upland birds and waterfowl with the power of 9.6 g/cc density pellets. Sourced from Federal's partners at HEVI-Shot HEVI-Bismuth shot is 22 percent denser than steel delivering more lethal energy downrange. Launched by the FLITECONTROL FLEX wad bismuth pellets pattern consistently and their metallic properties make them safe in both modern and classic shotguns. Specifications for Federal Premium HEVI-Bismuth 12 Gauge 1 1/4oz 2 3/4 in Shotgun Ammunition: Manufacturer: Federal Gauge: 12 Number of Rounds: 25 Shell Length: 2 3/4 in Muzzle Velocity: 1350 ft/s Application: Waterfowl Shotgun Shot Weight: 1 1/4 oz oz Shot Material: Bismuth Lead Free: Yes Features of Federal Premium HEVI-Bismuth 12 Gauge 1.25 oz 2.75in Shotgun Ammunition At 9.6 g/cc HEVI-Bismuth pellets are 22 percent denser than steel for more downrange energy; Higher pellet counts than comparably performing steel; Softer than steel and tungsten; Rear-deploying FLITECONTROL FLEX wad creates more consistent efficient patterns; Safe and effective for use in both classic and modern shotguns; Package Contents: Federal Premium HEVI-Bismuth 12 Gauge 1.25oz 2.75in Shotgun Ammunition What is Federal Premium HEVI-Bismuth 12 Gauge 1 1/4oz 2 3/4 in Shotgun Ammunition good for? The manufacturer suggests that it is good for waterfowl.Federal PHBX144 3: Premium HEVI-Bismuth 12 Gauge 1.25oz 2.75in Shotgun Ammo 3 Shot 25 Rounds