Cal, I have been using Bismuth shot for waterfowl since it came to the US in the 80s because of the non tox requiremet. I use SXS shotguns and the barrels are not as thick as semis or pumps and Bismuth is not nearly as hard as steel but it carries the weight of lead. I am very happy with the results, most ducks and geese are dead in the air. The same as with lead. I bought it by the case so I still have some of the stuff from the Bismuth shot Co. When that is all I will be buying the stuff from Kent.