I would never sight one so that 6 oclock stuck the center of the bull on any target over 3" in diameter.
If 1-1.5" high at 25 its pretty good to the normal point blank with more RB guns.
Dan
With 1 1/2" high at 25 - and with a small bore, .40 or .45, high velocity gun, high sights will elevate the max height of the ball, giving a false long range point blank. How high is it at 50 or 75yards?
Point Blank computer printout shows : BC .050 - Muz. Vel. 1,900fps - sights only 1.0" above centre of the bore:
25yds. +1.48" 50 yds. + 3.09" 75yds + 3.44" 100yds. + 2.08" 125 yards -1.34" zero is where the ball first touches the line of sighting which is 117yards.
Higher Ballistic Coeficients will increase the height of ball impact at the anges specified, as will higher sights as will higher impacts at 25 yards. If sighting on a 4" bull, 6 o'clock hold with a blade, that will put the ball actually 2" + over point of aim, so the intermediate heights will be even higher, as in 25 +2.0" 50 + 3.1" 75 +5" 100 + 2.1" 125 + 1.24"
So- you can see that sighting for high impacts at close range really fuzzes things at longer ranges and this effect is magnified with height changes of sights as well as with Ballistic C's.
This darta was copiled with a very low BC - and approximate speed of normal .40 cal rifle.