OSH, I would check the scope first to see if it has paralex. to do this you need to put the gun into the sled and sight the scope on a object. without touching the gun look through the scope. slowly move your head left and right and up and down. if the crosshairs seem to move the scope is done. also make sure the mounts and rings on the scope are tight. any of these things will cause the gun to shoot off. hope this helps.