Tighter choke will result in higher pellet count hits if aiming accuracy is tighter. Increased pellet count will do the same with no increase in aiming accuracy required.
Better "accuracy" (I really don't like the use of that word when describing shotgunning) is exactly what occurs, over time, when you move to tighter chokes. It is a phenomenon that I can't quite explain. Part of it is that, subconsciously, you know you have be more "right" with your line and lead, just more precise. But, part of it has more to do with something less quantifiable, a freedom from concern with whether or not you have enough choke in the barrel, or if you left your box of chokes at the last station, etc. You watch the bird closer, and the right things just happen more often.
Increased pellet count is exactly why I use 1 1/8 oz. loads in competition.
Stan
