Two of us went north last week for wild pheasants, no dog. Some close flushes, some way out there. I was shooting 20ga Black Cloud 1oz of #3, buddy shooting 12ga 1-1/4oz of bismuth #5. Results basically the same with both loads. Birds dropped on the first shot, but most still very much able to run. I'd rather shoot lead, but I'm pretty comfortable using the #3 Black Cloud in a 20. If a pheasant moves even a little after it hits the ground, shoot it again unless you have a very quick and aggressive dog.