I was so disappointed with results of bismuth loads that I gave away about 10 boxes to a duck hunter friend. I had used them on some preserve pheasants for an old dogs last hunt. All six birds were very lightly crippled as if I were shooting very light loads of very small shot. It did give the old girl a good workout, though!! This was about 7 or 8 years ago. These came in green boxes and I don't remember the company that loaded them. Hopefully the new stuff is much better.