The quality of a revolver’s sights can certainly influence its hit potential:
This photo clearly illustrates where the focus must be. Also notice the increased depth of the rear notch, which improves the consistency of horizontal alignment - always a struggle with a two-inch.
With the same revolver, double action, two hands standing, at 50 feet, on a good day. There still seems to be an annoying flyer to spoil things. But, notice the limited lateral dispersion.