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Posted: 8/7/2011 7:24:07 PM EDT
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This may be a newbie question, but I'm a newbie to AR's. I went to the range today and got my AR zeroed in. I made a mistake and used the rear elevation screw to adjust the elevation. It is on a detachable carry handle (if that matters). It ended up on the 6/3 marking at 50 yards. Anyway, I read a few posts on here about zeroing in, and stumbled on the RIBZ method. I don't really understand this, but my question is should I rezero the rifle at 8/3 -6 or just leave it? Also, what adjustments should I make when I shoot at 100?
Any help would be appreciated. P.S. I'm not new to shooting, but the reason I used the rear elevation knob is I'm used to sighting in my scoped rifle using the scope elevation screw. I was shooting tight groups when I finished, but I'm just wondering what I need to do. |
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The best thing to do at this point is to start over and re-zero your weapon. But not before setting up your rear sight according to the Revised Improved Battlesight Zero (RIBZ) procedure.
First of all, you should keep re-reading the RIBZ instructions until you have a complete understanding of the principle behind the process. The RIBZ won’t do you any dam good if you don’t understand why you’re setting up your rear sight that way. Oh, one more thing, make sure you start by setting the bottom of your front sight post flush with the inside of your front sight base. The way I typed this probably doesn’t make any sense at all to you so refer to US Army FM 3-22.9 formerly known as FM 23-9 for the front sight “mechanical zero” set up. Not to confuse you any further than I know I already have, but believe it or not there is a big difference between yards and meters, especially when it comes to projectile trajectory. We’ll have to leave that subject to a different thread. Hope I've been some help, Chris |
| re-zero and you don't have to be -6. with that method go -4 and adjust elevation with the front sight post. at 100 yards you will still be good. i zeroed mine like this at 50 for poa/poi and i nail clays at 100 all day long. i don't have access to a range over 100 so i can't tell you what happens after that. |
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I don't know which RIBZ procedure you read, but i found that this one was clear enough for me to understand. RIBZ
I won't muddy the waters, by trying to explain it. I am very noobish at the carry handle sights myself. I would re-zero using the RIBZ. |
| The Revised Improved Battlesight Zero procedure you should use is at this link RIBZ. The problem with the Front Sight’s zero procedure is simple, they use the large aperture rear sight. The large aperture was designed for low light short range engagements. Now many will say most defensive engagements are at very short ranges, and they are exactly right. But if you’re like me and are also interested in somewhat precision target shooting, then you will want to use the small aperture. And yes there is a difference in the line of sight between the small and large aperture sights. |
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Thanks for the help guys, I just haven't had the time to re-read the RIBZ to fully understand it. I think I have a basic understanding of it, but I think my best bet it going to be to print out the instructions from one of the links you guys posted and take that with me to the range. I understand how to do it, but I'm not the most mathematically-minded person. That kind of makes me miss that part of it. I should probably get my dad (an engineer) to try to explain the mathematical logic behind it maybe?
Again, guys, thanks a lot for the help. I've become very fond of the help I've seen most of the people give me and everyone else newly infected by BRD. Coming from a traditional rifle, shotgun and pistol background it makes it a lot more fun when you can get some helpful and informative feedback. Not to mention, it's easier to justify spending the money I have on the rifle, ammo and necessary additions to alleviate the symptoms of BRD. ETA: I had planned on re-zeroing, but that has brought up another question. On my carry handle the 6/3 is not the lowest setting, it will go 1 click lower. I was wondering if that would make any difference when moving the setting after loosening the allen screw. |
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