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View Full Version : ?'s on sighting in.


breakwater
04-14-2009, 2:07 PM
I just received my upper. I have the LMT front & rear iron sights. I have never shot a rifle before, at least one that's mine. shot a few times, but did not really know how to properly look through the sights & sight in. I pulled up this link on a 200yrd battlesight zero & I did what it said to do with my sights.
http://grburnett.us/guns/ImprovedBattlesightZero.pdf

My sight bottoms at 6/3 with 6 clicks between 3&4. So according to this link my sight is bottomed at 200yards with -4 clicks past the 6/3 mark.

I am still trying to understand what all of these settings mean, for example the link says if you know your target is past 300yrds, set the # on your sight to the yardage your shooting at. So would that mean that if I want to shot at 400yrds I would put the dial on #4?
If someone can help me understand sighting, that will be a great help & also what should my sight picture look like when looking through the sight.
Thanks.

Macadelic4
04-14-2009, 2:12 PM
+1 on this, I used the above IBSZ but then re-BZ'd to 100 yards and now I'm wondering if that was a smart thing to do.

domokun
04-14-2009, 2:13 PM
Use this one instead...

http://www.ar15.com/forums/topic.html?b=3&f=18&t=328143

It has better explanations. ;)

As for your sight picture, you want the tip of the front sight post on whatever you're targeting with it centered in the ghost ring in the rear. Use the small aperture when zeroing, the large one is for close in shooting.

Macadelic4
04-14-2009, 2:23 PM
Thanks, domokun! This explanation is much better.

Cal-Irish
04-14-2009, 2:54 PM
Just to note. Take a good look at the bullet flight path of the different zeros. Even though its nice to have a dead on 100 yards, zeroing at 50yd there is about 1.6 inches deviation from your POA at 100. But you'll get better POI at higher ranges. I like the fact that Ill probably never touch the elevation once set at a 50 yd zero. But its all about preference, Ill post the plots side by side for comparison.

http://www.box.net/shared/static/tppqdkapak.jpghttp://www.box.net/shared/static/dfy9jf6t9p.jpg

breakwater
04-14-2009, 3:10 PM
quote from another member on that link from ar-15

"All right, so as I see it for me and my 6/3 sight, this is how it breaks down (after zeroing at 50 w/small aperature as per the OP):"

Small aperature:

25: 6/3
50: -4
100: -6
200: -4
300: 6/3
400: 4 setting (+6 if you aren't looking)
500: 5 setting (+8 if you aren't looking)
600: 6 setting (+ 11 if you aren't looking)

Correct me if i'm wrong. So the lower the rear sight goes (bottom) that is your 100yrd, then if you want to shoot out futher, the sight is raised higher by the clicks? Then why is the 25 yrd & 300yrd also the 50& 200 the same? Is it because of the bullets Trajectory? (never mind I think I figured it out).