I hunted geese in S. IL years ago with a guy who used a Spanish made sxs with long barrels choked full and full. His ejectors were broke. He always shot both barrels, broke the gun open, stuck the muzzle in his mouth and blew out the empties. He was a good shot with that sxs.
CRP was responsible for 25.7 million additional ducks produced in the U.S. Prairie Pothole Region during 1992-2003. Source DU.