Getting the distance isn't just about poundage and arrow weight, although they play a large part. Another aspect to consider is how far the back of the arrow is below your aiming eye. If, at full draw, you have the draw hand up close to your eye, the sight will need to be very low to reach any mid range target.
If the draw hand is under the jaw, the same sight mark will get you further. Sometimes the index finger is curled round the front of the jaw, not under, and that shortens the range. Some archers have very short faces, so even with the draw hand under the jaw, the distance from eye down to arrow nock is shorter than most and that lowers sight marks.
If the sight is way out at full extension, it could be brought right in close to the riser.