ok i am trying to figure out why i have to aim at the bottom of a fifty yard target to hit it. why i think this happens is that fixed handgun sights are actually set to aim a little higher than the muzzle is actually pointing at to compensate for bullet drop. This would give you a zero at say 15-20 yards. and i think at say 50 yards the sights are actually pointing too high because the bullet hasnt droped enough. Any thoughts?