A number of years ago I hunted preserve pheasant with a Model 21 choked M/F. I used the Polywad spreader loads, because ranges were fairly short. I found that they hammered pheasants - every bird I hit was dead right there. I sold the gun to fund another purchase and still have a handful of the shells. Since I now hunt with older British sxs, I don't use them. But I still recall my amazement at how well they worked.