When i mounted mine, brand new out of the box i ran out of adjustment as well. Wast until after a box of shells my brain kicked in and i realized the dot wasnt moving. I ran the adjustment all the way up then back down a few times and it fixed the problem. Called vortex and spoke with a technician who told me that it happens regularly and what i did is what they suggest. Havent had an issue since. May not be whats going on with yours but worth checking.
