Patent attributes
An ammunition round includes a slug having a cylindrical body portion and a slug casing having a cylindrical body with an open top end, a closed bottom end, and an interior cavity extending therebetween. The interior cavity is configured for receiving at least a portion of the cylindrical body portion of the slug. At least one groove extends circumferentially around at least a portion of one of the cylindrical body portion of the slug and the interior cavity of the slug casing. At least one projection extends circumferentially around at least a portion of the other of the cylindrical body portion of the slug and the interior cavity of the slug casing. The at least one projection is configured for being received within at least a portion of the at least one groove.