I prefer a 3" shell with 41 #4 buckshot pellets.

 

I have also found the Remington and Federal 3" #4 buckshot to cost the least per round.

 

Im not sure about on game performance but the heavy shot dead coyote 3.5" load patterns much better for me. At 50 yards I consistantly get 25+ hits on a 12 inch circle and 10+ hits in the center 6 inch circle.

 

I have a buddy who really likes Federal 3" #4 buck. Personally, I haven't chased the Wiley with a shotgun. Next winter I will -- after dark!