Tungsten Matrix--at least until Hevi-Shot came along--was about as good as any nontoxic load out there. Agree that once you go to the 3" 20ga, there are far more choices for waterfowl (and heavier loads) than are available for the 16ga. Now if you can find some of those old Kent 1 1/4 oz TM 16ga loads, they are far killers for sure.