I'm having accuracy and consistancy issues with my new Tac15i. And yes I know how to adjust for parallex. Shooting at 30 yards, I'll adjust parallex and it will shoot good for 5-8 arrows, 1" group, then the very next arrow the group will shift 4-6" in another area and it will continue to group well there until about the 6th arrow where it will shift again. Im pulling my hair out with this bow. Everything is tight, rest, limbs, bolts, scope, etc. I did notice the UTG scope that came with it, the adjustment bottoms out when i try to use the upper mil-dot at 30 yards and it tops out when i try to use the crosshairs for a 30 yard zero. It seems as though there should be more adjustment in this scope than this. Anyone else having similar issues with this bow/scope? I purchased this in order to extend my range but it does me no good if I cant hit anything past 40 yards. My $250 Horton is more accurate. I'll be swapping the scope as soon as my new arrows arrive, I've lost 2 already with this problem, to see if it is actually the scope. Any help will be greatly appreciated.