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8/24/2007 9:29:25 AM EDT
Today was the first time I've had the chance to zero an AR15 with an ACOG on it.  I only had a 25yd indoor range available to me, plus it's to freaking hot to be outside.  

Anyway I usually just zero to a point that is about .75 inches below POA, and then adjust when I get to a longer range.  Looking through the ACOG, it looked like the rounds were impacting the target at about the 300yd line in the scope.  Would it just be easier when getting a 25yd zero to just use either the 200 or 300yd line?

Anyone else want to comment?

ETA: Its a TA01NSN and a 16 inch barrel.
8/24/2007 10:58:53 AM EDT
[#1]
Use the 300m line at 25m for an approximate zero, as the round is at about the same elevation at 25m and at 300m.
8/24/2007 3:44:22 PM EDT
[#2]

Quoted:
Use the 300m line at 25m for an approximate zero, as the round is at about the same elevation at 25m and at 300m.


My feeble mind knew there was a reason to do it.
8/25/2007 4:02:33 AM EDT
[#3]

Quoted:
im looking at that model, how is the eye relief, and can you still see the rectile with both eyes open?


Eye relief seems to be a non issue, as the reticle and sight picture can be seen from a fairly wide range of distances.

Yes you can easily shoot with both eyes open.  
8/25/2007 10:27:06 AM EDT
[#4]
Agree with Phoebus -- 25m zero is very close to 300m zero.

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