Hitting inside a 3 inch circle is more than enough to kill a deer. I can hit inside that same circle at 20 yards from the ground and from a treestand. I guess I am not a 3-D shooter like some people on here becauseI do not think in terms of hitting something .40 inches wide, I think of maybe 2-3 inches. Dang GMMAT, your a tough sell. I guess I should be splitting arrows in half every other shot.