
Originally Posted by
JohnnyNumbers
Now from what I have read using M193 w/14.5" barrel and hitting about an inch high at 50 yards...should put me right on at 100yds. At least thats what I thought I read somewhere on this forum... I may be wrong.
That first group is roughly 5" high from center.

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Glad to see that BCM is making it right. As far as your understanding of zeroes, you are way off. A 100yd zero will just touch POA at 100yds. It will be low closer and further away. You should have a POI about 3/4" low at 50yds with a 100yd zero.
If you are an inch high at 50yds, you will, as you discovered, be about 5" high at 100yds.
A good source of info on various zeroes, sights, and sight posts can be found in this thread by Molon
http://m4carbine.net/showthread.php?t=65679
In fact, the first couple paragraphs address the 100yd zero, with a nice graph.
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