Similar to Bird Bombs®, Shell Crackers ("cracker shells") explode with a very loud "BANG" that scares pest birds and wildlife.
Shell Crackers are fired from a 12 gauge shotgun. They're are especially useful when a greater firing distance is desired as they will travel 200 feet or more before exploding. Actual range varies depending on firing angle and wind factor.
Shell Crackers must be fired from a clean shotgun without a full choke, and with a chamber at least 2-3/4 inches long, and a barrel at least 20 inches long.
NOY-PS00049(EA) CRACKERSHELL(EA) 12GA