O.k....you need to do a couple of things..First of all you need to paper tune your bow...I would go to a bow shop and they will explain to you how to do that and what to look for..After you are shooting bullet holes,you want to tune your broadheads and arrows..The way I do this is spin a head on an arrow,stand arrow upright on flat surface make circle with thumb and pointer finger around shaft below fletching and spin arrow with other hand.If the arrow wobbles a couple of inches above broadhead,loosen broadhead adjust rubber washer and retightem and try again..If problem persists put head on another arrow and same process.When you match arrow to broadhead that doesn't wobble you should be good to go..This can be frustrating but once heads are matched to arrows your groups will come together.. Good luck.