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What type of groups to expect from a Colt le6920 ? #5633377 03/04/15 08:50 AM
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TheOilman Offline OP
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I have a Colt LE6920 with 1:7 twist in 5.556 and was wondering what groups others are getting out of this rifle! I'm averaging about 1.75" but that's with cheap American eagle ammo. Thanks for info.

Re: What type of groups to expect from a Colt le6920 ? [Re: TheOilman] #5633381 03/04/15 09:07 AM
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At what distance? I may be wrong, but I was under the impression that Mil-Spec requires like 4 MOA.

Re: What type of groups to expect from a Colt le6920 ? [Re: TheOilman] #5633385 03/04/15 09:26 AM
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100 yards

Re: What type of groups to expect from a Colt le6920 ? [Re: TheOilman] #5633430 03/04/15 12:28 PM
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3-shot or 5-shot?

Most ARs, in my experience, are not sub-MOA guns. If you can get 1.5" 5-shot groups out of it with decent factory ammo, that's about as good as you can reasonably expect. Some factory guns will shoot better than that, and many will shoot worse. But in my experience, that's about the best average group you can expect from 6920-level AR (anything in that same price range with roughly the same features and build quality).

Though I've never shot one of the more expensive models myself, I've heard those can get to MOA or slightly better.

Re: What type of groups to expect from a Colt le6920 ? [Re: TheOilman] #5633487 03/04/15 01:21 PM
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Scoped or open sights?


Originally Posted by Jungleexplorer
I really hate to do what I am about to do, because it will be very painful for you.


Re: What type of groups to expect from a Colt le6920 ? [Re: TheOilman] #5633575 03/04/15 02:23 PM
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Are you going to buy match grade ammo?

Re: What type of groups to expect from a Colt le6920 ? [Re: T Bone] #5633589 03/04/15 02:29 PM
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Originally Posted By: T Bone
Scoped or open sights?
Good question. My post assumed you had some sort of 1-4x scope on there. If you're running open sights, 1.75" is an excellent group.

Re: What type of groups to expect from a Colt le6920 ? [Re: TheOilman] #5633593 03/04/15 02:33 PM
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With a decent scope all my AR's will maintain under MOA. Have not shot the one you speak of though.

I cannot remember shooting any Rock River ARs that would not shoot good ammo under an 1 inch and I have shot a bunch of them.

None of the one I am speaking of are what y'all call "entry " level though.


"Anyone taking up handloading necessarily plays with unknown factors and takes chances. But so does anyone who drives a car,goes to a cocktail party,eats in a restaurant,or gets married."

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Re: What type of groups to expect from a Colt le6920 ? [Re: TheOilman] #5633606 03/04/15 02:44 PM
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If you are buying cheap ammo, get the cheap stuff that is 69gr or higher it will do wonders in the 6920.....

http://www.midwayusa.com/product/2503219...=ProductFinding

http://www.midwayusa.com/product/2503224...=ProductFinding

it is unrealistic to expect SubMOA/MOA performance from 2moa ammo....... doesn't matter how good the rifle is.......

Re: What type of groups to expect from a Colt le6920 ? [Re: DStroud] #5633644 03/04/15 03:06 PM
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Originally Posted By: DStroud
With a decent scope all my AR's will maintain under MOA. Have not shot the one you speak of though.

I cannot remember shooting any Rock River ARs that would not shoot good ammo under an 1 inch and I have shot a bunch of them.

None of the one I am speaking of are what y'all call "entry " level though.
What type of optics do you have on these?

I had an EOTech on my last Rock River and 1" was about as good as it ever did. Wouldn't consistently do that. But the EOTech is hardly a target shooting scope.

Re: What type of groups to expect from a Colt le6920 ? [Re: TheOilman] #5633688 03/04/15 03:29 PM
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This is a 5 shot group at 50 yards with a 10.5" SBR with a Aimpoint T1 and Lake City 62gr green tip bulk ammo. Was shooting prone off the bag with no rear bag out of the back of my truck. Was a pretty good group besides that one flyer which was me not the gun. With an actual scope and better ammo I could probably tighten it up a lot, but with the 10.5" barrel she really opens up at 100 yards LOL.





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Re: What type of groups to expect from a Colt le6920 ? [Re: TheOilman] #5633879 03/04/15 05:31 PM
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My DD m4v1 was sub-moa at 100yds with reloads (75gr bthp/varget) using a Vortex Diamondback 3.5-10x50 and the only other upgrade in the rifle was a Geissele SSA-E trigger.

Re: What type of groups to expect from a Colt le6920 ? [Re: TheOilman] #5634138 03/04/15 08:06 PM
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Guess I should included more information in my post. Leupold vx3 4-12-50 scope 100 yards 5 shot group . I do plan on testing out some match ammo was just curious what to expect from both. I know a 6920 isn't a high dollar custom AR but in my opinion it's not entry level bushmaster either so I was expecting decent groups.

Re: What type of groups to expect from a Colt le6920 ? [Re: TheOilman] #5634273 03/04/15 09:28 PM
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Don't think it's the rifle. I consider the AE 55gn ammo as plinking/training ammo or if you just want to shoot a bunch hogs in a hurry ammo.

I'd try some of that Priv Partisan 75gn ammo linked earlier. You have a 1/7 twist use it. Moving up in weight should help a lot. I'd grab 5-6 of different weights and manufacturers and see what the rifle likes best.


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Re: What type of groups to expect from a Colt le6920 ? [Re: TheOilman] #5634288 03/04/15 09:33 PM
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Originally Posted By: TheOilman
Guess I should included more information in my post. Leupold vx3 4-12-50 scope 100 yards 5 shot group . I do plan on testing out some match ammo was just curious what to expect from both. I know a 6920 isn't a high dollar custom AR but in my opinion it's not entry level bushmaster either so I was expecting decent groups.


What trigger do you have in it? If it is the factory trigger, get a RRA/LMT 2 stage trigger at a bare minimum. You can find them for around $80. If you want the bees knees, get a Geiselle. You should see your groups improve, even with the same ammo.

Re: What type of groups to expect from a Colt le6920 ? [Re: TheOilman] #5634446 03/04/15 11:22 PM
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Try trigger and better ammo

Re: What type of groups to expect from a Colt le6920 ? [Re: Brother in-law] #5634516 03/05/15 12:02 AM
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Originally Posted By: Brother in-law
Try trigger and better ammo


Good start.


The Greatest Enemy of knowledge is not ignorance,
it is the illusion of knowledge.--Stephen Hawking
Re: What type of groups to expect from a Colt le6920 ? [Re: TheOilman] #5634549 03/05/15 12:15 AM
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I picked up some Hornady 75gn match ammo and try it out. The goal is to be able to shoot 300 yards and hit a 10" plate.

Re: What type of groups to expect from a Colt le6920 ? [Re: TheOilman] #5634553 03/05/15 12:18 AM
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last time I shot my 6920 with a 3x9 scope on a bench, I got 1.5" 5-shot group at 100 yards with some good ammo. When I first got it, I shot a couple 1" 3-shot groups with cheap ammo at 100 yards, but never was able to repeat that on following range sessions.

Last edited by Colt W. Knight; 03/05/15 12:18 AM.
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