The same method can be used for wingshooting as well. Except, that this time, you want to draw the circles BEFORE you pattern. You want to know exactly where yourgun is shooting, since you have only a bead, and no sights or scope. I prefer to shoot offhand for this. I draw a 12" circle and then a 24" circle. The 3" is there again, as a point of aim.

Here is my duck/goose combo, I shoot the exact same thing for both. This is my Beretta 390 12ga, Briley Extended Mod choke, with Environmetal Hevi Shot #6, at 30 yards.

Note: I use a 10" and a 30" circle now... and I use a second 30" circle to trace the central/densest part of the pattern. Still though... some patterning, no matter how rough or crude is far and away better than no patterning at all.