The shot has been reformulated to make it less brittle. Original-recipe bismuth was 98 percent bismuth, 2 percent tin; the new pellets are 94 percent to 6 percent. In the field I shot a couple of geese, a few ducks, and a wayward dove with it. Bismuth 3 and 4 shot performed well; I did find some had shattered against bones in the birds I cleaned, but that did not affect its lethality. When I put it to the hard test of killing straightaway wild pheasants--one of the toughest targets that flies--I had to make more follow-up shots, and my shorthair, Jed, had to chase more lively birds than I am used to with lead or even good modern steel 2s and 3s. On the other hand, bismuth breaks at the dinner table before teeth do, which is a plus.