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Old June 10, 2014, 11:43 PM   #52
JohnKSa
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Join Date: February 12, 2001
Location: DFW Area
Posts: 24,985
I've fired a few sub-moa groups with iron sights, and I can tell you that my rifle was definitely not moving around like the one in the video when I managed to achieve that level of performance. I also had a target with a well-defined, high-contrast aiming point.

If he really shot that group as it appears to be shown happening in the video, he got very lucky.

It was easy to see his front sight moving around even right up to the point of the shot. I kept waiting for it to settle before the shot but it kept shifting around.

Without a clearly defined aiming point and with his rifle moving around like that, a group like the one in the video and at the distance claimed would be an extremely unlikely proposition. Consider that with a 2.5 foot sight radius, if the front sight were to move a single millimeter, the bullet impact would be about 5" off the point of aim. The front sight in the video is definitely moving around by more than 1mm.
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