Zero a Scope
The following information is to assist you in properly zeroing your scope. Normally, not more than six to eight inches of adjustment are required for zeroing. In extreme cases, ten to twelve inches are needed. We suggest you carefully check your mounting system first. Your scope is optically centered from the factory, which means the erector system in your scope sits right in the middle of the scope's tube. Any adjustments made using the W/E dials will move the erector system from the center. Please make sure that you can zero the Point of Impact (bullet impact point) and Point of Aim (crosshair point) without using excessive amount of W/E adjustment.
FOR THOSE WHO DO NOT HAVE A BORE-SIGHTER Mount your scope on your rifle and tighten all screws. Set the target at 25 yards. From bench rest, aim at the center of your target and shoot 2 or 3 rounds. Examine your target, check how far your Point of Impact (POI) is from your Point of Aim (POA). If the bullet hits were more than 3 inches (12 inches/100 yards) apart from where you aimed at, you have problem(s) with your mounting system. Do not use W/E adjustment screw. Adjust the mounting system first. FOR THOSE WHO ARE USING A BORE-SIGHTER With the top portion of your mounting rings open, put your riflescope on your rings, determine how far the center of your crosshairs is from the center of your bore-sighter grid. If they are more than 3 squares (12 inches/100 yards) apart from each other, you have problem(s) with your mounting system. Do not use W/E adjustment screw. Adjust the mounting system first. NOTE: Never force the W/E screws past their natural stop. Internal damage can result rendering the scope inoperative. The most common occurrence with "over-adjusting" includes: power change system jamming, broken inner lenses, poor image quality, insufficient grouping of shots, and limited or irregular movement of POI alignment. AFTER YOU HAVE BORE SIGHTED AND IT IS CLOSE: Locate a safe place to test fire and fine tune your weapon, preferable a firing range. The next step is to find a stable surface to fire from. If you cannot hold the weapon still, it will not zero in correctly. A couple of small sand bags will come in handy for stabilizing the weapon. A dry patch should be run through the bore to remove any oil. With a target set up at 100 yards you are now ready to test fire. Holding the crosshairs steady on the target, squeeze off a round. Repeat this two more times to get a three shot group. Retrieve your target and triangulate the shots to get an average point of impact. Measure from that POI to the bulls eye where you aimed. This measurement can now be adjusted out with adjusting screws located under the top and side (screw off caps) located in the center of the scope. The arrows on the dial show which direction they will move the bullet. Turn the adjusting screws according to the MOA scale on the dial. If they say 1/4 MOA, that's means one click will move the bullet 1/4" at 100 yards. Note, if you zero at a different yardage, say 50 Yards, one click will move the bullet only 1/8" at 50 yards. Once you have adjusted the windage (side screw) and the elevation (top screw), you are now ready for another 3 shot group. Repeat this process until you are satisfied with the results. It is important to allow the barrel to cool down in between the three shot groups as heating of the barrel can cause bullet flight to vary. It is also recommended to swab the bore between shots with a dry patch to reduce buildup. Do not use any cleaning fluid or oil on the swab as this can affect bullet flight. If you are sighting in the weapon for hunting deer, you may want to adjust the elevation an inch or two above bullseye at 100 yards. This will give your weapon extended range and still keep you in the kill zone at 100 yards and less. Sighting in should be done on a windless day or a least on a day when the wind is 5mph or less. When it is time to go shooting or hunting later, make sure to run a dry patch through the bore to remove the protecting oil that was used after the last cleaning. Remember: Treat your weapon as being loaded at all times. Communicate your intentions with others on the range. Check down range every time before firing. Take along hearing and eye protection. Don't forget the Targets