Not familiar with your scope but some of my scopes only allow one turn of windage. Then you remove the cap and reset zero, it will then allow another turn. That cost me a trip to the range once. You didn't mention if you were using a canted rail but if you have a 20 moa rail under the scope the shot can be really high at first. Other thing to check is base screws bottoming out on the barrel threads. They torque fine but the rail is loose.