HEVI-Shot HEVI-HAMMER UPLAND 20 Gauge 7/8oz 3in #5 Centerfire Shotgun Ammo 25 Rounds. Density is the secret sauce. It leads to tighter patterns higher speeds and more knockdown power. In short it increases your chance of success in the field. Our HEVI-Hammer Upland has a 15percent high density bismuth (9.64 g/cc) layered over 85percent precision steel pellets. That small but mighty leading edge of bismuth packs nearly 50percent more knockdown power than the steel layer at 40 yards Specifications for HEVI-Shot HEVI-HAMMER UPLAND 20 Gauge 7/8oz 3in Shotgun Ammunition: Manufacturer: HEVI-Shot Gauge: 20 Number of Rounds: 25 Shot Size: 5 Shell Length: 3 in Muzzle Velocity: 1325 ft/s Application: Upland Shotgun Shot Weight: 7/8 oz Shot Material: Steel Primer Style: Centerfire Cartridge Case Material: Brass Lead Free: No Package Contents: HEVI-Shot HEVI-HAMMER UPLAND 20 Gauge 7/8oz 3in Shotgun Ammunition What is HEVI-Shot HEVI-HAMMER UPLAND 20 Gauge 7/8oz 3in Shotgun Ammunition good for? The manufacturer suggests that it is best for upland.HEVI-Shot HS29225: HEVI-HAMMER UPLAND 20 Gauge 7/8oz 3in #5 Centerfire Shotgun Ammo 25 Rounds