There is nothing as good as lead though. I am going to try some #5 Eco-tungsten. About 4 years ago, I got up very early and drove about an hour to pass shoot some geese where I have been very successful in the past. I brought my Kent TM loads in the house overnight out of the car as it was very cold. When I arrived I realized that I forgot the TM loads and decided to go out anyway. I had my 16 gauge Grulla with me and only had B&P #6 loads. I grabbed some of them and went down to the creek and waited. As usual, the geese started getting antsy down stream and took off my way to go feed. I dropped two with two shots and quickly reloaded and dropped another. All were stone dead with #6 shot. I remember thinking how great it would be to still be allowed to shoot lead at waterfowl.
