The Rio Bismuth 36 Shotshell comes in a 12-gauge size, measuring 2_ inches long. These shells feature a 1_ ounce payload, and they are available with shot sizes 3 through 6 – they also come in magnum form, measuring 3 inches long and achieving a muzzle velocity of up to 1,400 feet per second. If you are in need of a hard-hitting shotshell that delivers an impressive muzzle velocity and unmatched down-range power, look no further than the Rio Bismuth 36 Shotshell. Not only are these shotshells perfect for nontoxic waterfowl hunting, but they are also compatible with vintage weapons that aren’t able to tolerate modern steel shot.