I guess I can tell you I had obtained some from a nearby Cabelas outlet. The 3-inch shells. They even sell some 3.5's. The only 3.5" that the Hevi-Shot company chambers, so far. I also can tell you that the stuff does exactly what it says it does. Makes coyotes deader than needed be. I haven't shot allot of coyotes with a shotgun, and when I did it was with a magnum lead load of 4's or 2's. They're a tough animal and this one I shot we called in about 50yrds I'd say. Not too close and not too far away. But when my friend missed with his rifle I shot. It was a very dead coyote. I never really looked for where the pellets went in but there was noticeable blood coming from her left ear and one had to have hit her spine. The mange had its whole hindquarters and most of her back missing fur. Back to the shot, it also puts very VERY big wholes in honkers. I only got one with it. For waterfowl, I think B is more than sufficient. This Dead coyote load is sure to have killed its share of waterfowl at ridiculous ranges. But, with its price and the amount of shot it has (50 pellets 3", 54 pellets 3.5") I'm pretty sure it won't become a pass shooters favorite. If you are a pass shooter who favors nothing but this load (T Hevi-Shot) send me some (not alot some) loads too because your love for the sport is as high as mine but, you have too much money