We get asked quite often "what is the best ammo with your choke." The answer is that it is really is a "trial and error" as each gun will shoot and pattern somewhat differently with each type of ammo and load. Our chokes were designed to work best with ammo that is less than 1550 FPS and don't use a "flight control" wad. Wad Wizard Chokes and Black Cloud ammo (and any other ammo that utilizes a wad that is designed to stay with the shot) are designed to do opposite things. Although there doesn't seem to be a problem putting that ammo through our chokes, you'll find that it probably won't give you the type of performance you desire. If you are intent on shooting Black Cloud, I recommend you use your factory improved cylinder choke. You may find there is no need to buy an expensive aftermarket choke. Best results when using the Wad Wizard Choke comes from using ammo with a tough wad cup and one that preferably covers the shot. Take a look at our Patterns page on the website to get an idea of what you can generally expect with our product and different types, sizes, lengths of ammunition.