Hevi-Shot Bismuth 410 Gauge 3in #5 9/16oz Upland Shotshells - 25 Rounds - HEVI-Bismuth. When you're hunting hard-flushing, fast-fying upland birds, the right shotshell can give you the advantage you need. HEVI-Bismuth Upland shells are 22% denser than steel to deliver more pellets on target and maximum knockdown power at an affordable price. And they're safe for most older fixed choke and classic shotguns. Bismuth shot 22% more dense than steel Non-toxic Dependable clean burning propellant