12 or 20

12 or 20 gauge, 12 or 20 gauge for pheasant, 12 or 20 gauge for dove hunting, 12 or 20 ka hcf, 12 or 20 gauge for sporting clays, 12 or 20 gauge for turkey, 12 or 20, 12 or 20 ka lcm, 12 or 20 gauge for skeet shooting, 12 or 20 gauge over under shotgun