So I shoot flintlocks. I have for 20 years but my daughter is getting into crossbows. We are both learning and if it were a flintlock questions I could figure it out. But heres the difficulty. We were shooting along hitting well zeroing the scope in at 25 yards and suddenly the point of impact changed dramatically for both of us. The scope did not move as far as we can tell but our groups moved 6" high and 6" to the left. What could this be? Limb wax needed? Tired eyes? Increased gravitational pull on carbon due to sunspots? Any ideas?
Check all bolts, screw, etc on the crossbow and scope. Alot of the time this is the problem. The other possiblity is that their is an issue with your scope. How many shots has it been since you have adjusted the scope? I just wonder if when adjusting it the crosshairs didn't move all the way. After some shots then they moved ajusting your POI.
Traditions only last if you pass them down to your kids!
A similar thing happened to me. The culprit was a loose screw, one that secures the entire riser the scope is mounted on. Now, after 20 or so shots, I check all the screws and make sure they remain tight.