Troubleshooting With Zeroing an NcStar Scope
The crosshairs of NcStar scopes are adjustable by rotating the dials on the right side of the scope (horizontal axis) and on top of the scope (vertical axis). Zeroing in the scope is a relatively simple process but can be complicated by parallax error. Parallax is the illusion of target movement caused by change in your line of sight. NcStar scopes are designed to compensate for parallax but if it becomes an issue you can manually adjust your scope (provided it features an objective bell). Zeroing in your scope, while adjusting for parallax, is a simple process.
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Instructions
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Estimate the bullet's projected point-of-impact as viewed through your NcStar scope. The point-of-impact can be pinpointed by using either a bore-sighter--removing the bolt and looking through the barrel at a specific point--or by firing live ammunition at your target and marking the bullet holes on the target.
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2
Estimate the distance to your target and rotate the objective bell (located at the front of the scope) so that the tic mark reflecting the distance to target is lined up with the dot located on the top of the scope. For instance, if your target is 75 meters away, line up the tick mark reading "75" with the dot. This adjustment corrects for parallax error.
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3
Remove the screw-caps from the adjustment dials of your NcStar scope.
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Adjust the crosshairs so they intersect on the point-of-impact. Adjust the vertical axis by rotating the dial clockwise to move the crosshair down or counter-clockwise to move the crosshair up. Adjust the horizontal axis by rotating the dial clockwise to move the crosshair left or counter-clockwise to move the crosshair right. Once the cross-hairs intersect the point-of-impact your scope is zeroed.
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Place the screw-caps back on your NcStar scope.
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