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Posted: 2/7/2008 7:29:27 AM EDT
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I was replying to another topic and old age started to kick in. How wide is the front sight post on in MOA on a 20" and 16" barrel? I want to say it's something like 8 and 11 moa, but I can't remember if that's right! I remember a topic a few months back, but it's now in the archives and for some reason or another I can't find it in the archive search. A little help here! Thanks! 
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You can calculate this as follows: Measure your front sight post width, and call it W. Measure the approximate distance from your eye to the front sight post, and call it R. The diameter of a circle that your eye is at the center of and the FSP is at the edge of is 21,600 MOA (360 degrees x 60 minutes/degree), and is also 2 * 3.14 * R inches - call this C. Your front sight MOA is 21,600 * (W/C). For example, with a 20" distance from eye to FSP and a 0.1" FSP, it would be: 21,600 * (0.1/(2 * 3.14 * 20)), or 17.2 MOA. |
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