I have used Bismuth shot since it hit the market and was made legal in PA and never looked back. When it first hit the market and was made in the US the manufacturer invited game agencies to a state facility shooting range in New Jersey to learn about it and shoot it. I was selected to go. Being a side by side shooter who did not want to run steel through my shotguns I was happy to have the opportunity. That was back when it was made in Texas by the Bismuth Cartridge Company. I still have a new unopened box of 25 in the white box of 7 1/2 shot, I brought back with me. We used it to shoot 5 stand at the during the session.
Any idea how far the pellet traveled before hitting the goose?
It was about a 30 yard shot. The shot broke both wings. The other goose I shot (at about the same distance) hit the ground incapacitated but not quite dead. I was loaded for duck, but got some goose hunting in instead that day. I was happy that the #4 bismuth did the job.