i found that when i sited my mantis hunter in a 25yrd it shoot REAL high in the stand,,so i sighted in at 20 and i am only a couple inches from under my stand out to prolly 10yrd about right on form 15 to 20 and i shoot low at 25yrds,,but this is with a 60# at 30in with 2315's and 100grn point,,,but i would site in at a closer yardage and then shoot from a tree stand or elevated plaform to see if that fixed the problem,,just my .10