If you are ground swatting, #4's are fine... use a full choke and aim slightly over the head... this should result in pellet-free meat. However, for wing-shooting, #4's don't carry enough pellets to retain a dense pattern beyond 27 or 28 yards with an I/C (or more open) choke, which causes misses inside the pattern. When we hunt sharpies in the cuts, we use a tight choke and old high brass #4 & #5 lead loads to take out the look-out birds at long range, so that we can run the dogs on the ground birds for wing-shooting.