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AI barrel won't hold quarter moa after 5000 rounds

bm11

bm11

Gunny Sergeant
Full Member
Minuteman
Jun 18, 2010
2,562
13
40
Maine
But it gets close. My barrel on my AX broke the 5,000 round mark today, and I shot some groups. This was the best one, but there were multiples in the sub .5 inch range.

Fantastic weapon system, if I could only own one this would be it and it is far and away the one I shoot the most.

2012-02-26172651.jpg


2012-02-26172619.jpg
 
Re: AI barrel won't hold quarter moa after 5000 rounds

You should work on your gun handling skills a little. Maybe you could tighten that group up a bit.
smile.gif

Curious. is yours a true AI barrel with 1 in 12 twist or the Bartlien version?
 
Re: AI barrel won't hold quarter moa after 5000 rounds

loved my ai ae, and one day ill be back into one and never get rid of it this time.
 
Re: AI barrel won't hold quarter moa after 5000 rounds

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: ogonzalez13</div><div class="ubbcode-body">Looks very good. got any pics of the rifle? </div></div>Sure, a few months back but still looks the same:
2011-12-24104105.jpg

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Carter Mayfield</div><div class="ubbcode-body">Where are the other 4 groups? </div></div>The others don't look good compared to this one. The first group was the first clean bore shots in a while, it took 10 rounds or so to settle in. After that, it was shooting good, and I two under .5 inches, but it would look like shit after this one so I didn't post it.
 
Re: AI barrel won't hold quarter moa after 5000 rounds

not goin to lie thats a weird looking AX, lol
 
Re: AI barrel won't hold quarter moa after 5000 rounds

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: shoot4fun</div><div class="ubbcode-body">You should work on your gun handling skills a little. Maybe you could tighten that group up a bit.
smile.gif

Curious. is yours a true AI barrel with 1 in 12 twist or the Bartlien version?

</div></div>This one is a true AI barrel. It was originally a 26" AW barrel (from my AW 1.5) which I had cut down to 18.5" and rethreaded, I have run it on this AX since buying the AX. I have the takeoff Bartlien which I will put on when this one wears out but it looks like it will be a bit.
 
Re: AI barrel won't hold quarter moa after 5000 rounds

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: BigJoe</div><div class="ubbcode-body">not goin to lie thats a weird looking AX, lol </div></div>Ha, you can tell I'm posting hammered, that is my DTA!!!

Here is my AX, they look the same in the small photobucket thumbnail after 10 or so beers:

2011-11-03133706.jpg
 
Re: AI barrel won't hold quarter moa after 5000 rounds

What's your next barrel going to be ?
 
Re: AI barrel won't hold quarter moa after 5000 rounds

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: TJ.</div><div class="ubbcode-body">What's your next barrel going to be ? </div></div>I have the original (to this AX) Bart barrel I am going to run when this one runs out.

I am also shooting a GAP Bartlen .243 barrel on this rifle, but less often.
 
Re: AI barrel won't hold quarter moa after 5000 rounds

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: bm11</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: BigJoe</div><div class="ubbcode-body">not goin to lie thats a weird looking AX, lol </div></div>Ha, you can tell I'm posting hammered, that is my DTA!!!

Here is my AX, the look the same in the small photobucket thumbnail after 10 or so beers:

2011-11-03133706.jpg
</div></div>

VERY NICE!
 
Re: AI barrel won't hold quarter moa after 5000 rounds

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: bm11</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: TJ.</div><div class="ubbcode-body">What's your next barrel going to be ? </div></div>I have the original (to this AX) Bart barrel I am going to run when this one runs out.

I am also shooting a GAP Bartlen .243 barrel on this rifle, but less often. </div></div>

I hate you !
 
Re: AI barrel won't hold quarter moa after 5000 rounds

Yeah, its a .308.
 
Re: AI barrel won't hold quarter moa after 5000 rounds

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: shoot4fun</div><div class="ubbcode-body">Car sales must be good.
A DTA and an AX.
smile.gif


</div></div>

Shoot J, you cant talk. All the AEs and AWs you have.
smile.gif
 
Re: AI barrel won't hold quarter moa after 5000 rounds

AE is gone.
Lovin' the AW I got from you.
Created a monster though, as I am looking at another one like it right now.
 
Re: AI barrel won't hold quarter moa after 5000 rounds

BM, how many rounds of that 5000 have been through that can with the cover on it? How's it holding up for you?
 
Re: AI barrel won't hold quarter moa after 5000 ro

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Tburkes</div><div class="ubbcode-body">BM, how many rounds of that 5000 have been through that can with the cover on it? How's it holding up for you? </div></div>2500 or so, and to cover is taking it like a champ! I have one of your type 3 covers I use when I throw on the longer .243 barrel as well. Good product and makes a world of difference, especially in the winter!
 
Re: AI barrel won't hold quarter moa after 5000 ro

You should try and clean the damn thing & it may tightnen up a bit
grin.gif
. Just kidding this barrel is a true hammer. I watched this group and the others that day, just a normal day for this tomato stick. Even though BM treats it like a cheep whore I have seen him put 50 rounds down and never have a round over 1/2 moa, never mind shooting a damn dot drill against him! The worst part is his DTA (shown above haha) will do the same, if not better right Joe. BM is a great shooter and can hold his own with anyone
wink.gif
.
 
Re: AI barrel won't hold quarter moa after 5000 ro

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Carter Mayfield</div><div class="ubbcode-body">Where are the other 4 groups? </div></div>Because ya called me out, here is the full pic of all 6 groups. The other 20 rounds were shot positional/etc so as to not completely be a group shooting douche.

2012-02-27193343.jpg


Group 1 measured .89", including the cold clean bore shot that is way out to the left. The rifle does not experience cold bore deviation but when it is clean it takes a bit to settle in. Shots 2-5 measure .488", 3-5 measure .267".

Group 2 measures .638", got my scope adjustment backwards which is why poi is high (been shooting my DTA with a CCW Nightforce on it, this Bender is CW.)

Group 3 is the superstar, .277".

Group 4 measures .908" with a terrible flier, .360" without.

Group 5 measures .529", you can see my POA got a little obscured, may have been tighter had I been able to see.

Group 6 measures .412", same POA issues.

Average for all 6 five shot groups .609".
 
Re: AI barrel won't hold quarter moa after 5000 ro

Sorry. I had to do it. We hold ourselves to a higher standard here, especially at 100 yards... at least you admitted up front that it was the best group as opposed to saying, "this is typical."

BTW... what position were you shooting the others in? Sitting or kneeling, I am about minute of pie plate at best. I really need to work more on that.
 
Re: AI barrel won't hold quarter moa after 5000 ro

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Carter Mayfield</div><div class="ubbcode-body">Sorry. I had to do it. We hold ourselves to a higher standard here, especially at 100 yards... at least you admitted up front that it was the best group as opposed to saying, "this is typical."

BTW... what position were you shooting the others in? Sitting or kneeling, I am about minute of pie plate at best. I really need to work more on that. </div></div>The above six were all shot prone with a bipod and rear bag, the other 20 rounds (brought a typical box of 50 handloads to the range) were the ones shot positional. Sorry for the confusion. I certainly don't shoot sub moa groups positional! Headshots on a steel target it what I try for. On a good day I can make a good hit percentage out to 200 yards or so.

We shoot quite a bit on steel out to 1100 yards or so in private property, but in the winter get stuck at the range because of the snow.
 
Re: AI barrel won't hold quarter moa after 5000 ro

To clear up any other misunderstandings in this thread, the title was not intended to suggest the rifle or the shooter (me) are consistent quarter moa shooters. It was done more as a jest because the barrel hit a milestone (5000 rounds) while shooting it, and the group was quite good.

The rifle with me shooting it I consider to be half moa. Meaning, if I were to shoot a series of 5 shot groups at 100 yards the average would be about half moa. Over the course of the last 1,000 rounds or so I notice the barrel throwing the occaisional flier every three to four groups which messes the average up. I believe the average above was somewhere around .54" taking out the first round clean bore shot, which I believe to be indicative of the rifles average performance.

Does it occasionally shoot a quarter inch group? Yes, probably one in ten. Some people would call that a quarter moa rifle. I call it a half moa rifle, which is what it averages, at 100 yards.

Further clarifying, when I say "half moa rifle," I mean it averages about half moa groups at 100. I cannot consistently hit half moa size targets at range. In fact, it would be a really good day if I hit a 1 moa target at 800 yards or so on my first shot. I can do it on my second shot half of the time or so, if I can see the splash. I have shot limited groups at those ranges as I would prefer to shoot steel, but the groups I have shot were definitely larger than half moa.

Finally, I am a 3-4 moa shooter from the kneeling or sitting, on a good day.

Anything else anyone want to gripe about? I was just excited that my rifle stills shoots after 5,000 rounds, I wasn't intending to make it a thread claiming that it always shoots quarter moa or anything like that.

Hell, I thought the fact that I had personally put 5,000 rounds down range was a bit impressive, judging from how many 50-300 round rifles I see for sale in the PX.
 
Re: AI barrel won't hold quarter moa after 5000 ro

Well, I understood what the thread was about. I was under the impression this was started not so much bragging about your abilities but about AI rifles in general. Don't know why folks get twisted up so easily around here. And yes, sometimes that includes ME.
 
Re: AI barrel won't hold quarter moa after 5000 ro

wow you guys need to get a life, guy was excited about how well his gun still shot after 5000 rounds. how about you get a gun to 5000 rounds before selling it and then you have room to talk instead of shooting groups at 100 all damn day to post on the internet.

nice gun BM and good shooting
 
Re: AI barrel won't hold quarter moa after 5000 ro

Good shooting BM, AI's are indestructible. I re-barreled my .308 into a 260 after 4500-ish rounds, I was scared that my barrel would die in the middle of a match.
 
Re: AI barrel won't hold quarter moa after 5000 ro

So I'm the a-hole for pointing out the SH Group Policy or is the policy no longer in effect?

I didn't really mean to stir anything up... I wasn't the one who broke out the calipers and decided to post a group on the Internet. When I do post groups at 100, I post them with accompanying groups (minimum of 4 5-shot groups). I didn't feel BM was being dishonest... he said what the other groups were in the post. I was just curious and wanted to see them.

I like reading bm11's posts and feel like he is an honest guy. I felt comfortable enough calling him to the mat on this because I know he is a standup guy who respects this site's policies. If my tone came across as accusatory, I apologize.
 
Re: AI barrel won't hold quarter moa after 5000 ro

We as members should respect the rules and set an example. Although I am incredibly impressed with that barrel it appears to violate the rules... Carter Mayfield is correct and I respect the hell out of him for putting himself out there to point that out.

I could never post my groups as I shoot in groups of one -- so my groups are always Sub MOA ...
smile.gif


-K
 
Re: AI barrel won't hold quarter moa after 5000 ro

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Carter Mayfield</div><div class="ubbcode-body">So I'm the a-hole for pointing out the SH Group Policy or is the policy no longer in effect?

I didn't really mean to stir anything up... I wasn't the one who broke out the calipers and decided to post a group on the Internet. When I do post groups at 100, I post them with accompanying groups (minimum of 4 5-shot groups). I didn't feel BM was being dishonest... he said what the other groups were in the post. I was just curious and wanted to see them.

I like reading bm11's posts and feel like he is an honest guy. I felt comfortable enough calling him to the mat on this because I know he is a standup guy who respects this site's policies. If my tone came across as accusatory, I apologize. </div></div>It's cool. I believe the group policy changed, but I had no problem posting up the others, I have nothing to hide! A lot of my "clarifications" were just to make it crystal clear that I wasn't claiming anything other than I was, which I started to get the impression you thought I was.
 
Re: AI barrel won't hold quarter moa after 5000 ro

No... you were being straight up. You pointed out up front that you had posted your best group. You are far from an egregious offender, which makes it easier to call you out... I know you will rise to the occasion.
 
Re: AI barrel won't hold quarter moa after 5000 ro


If I made it to 5k rounds I would be thrilled. That's a lot of shooting. If I were able to hold groups like these after that milestone I would be ecstatic.

Great shooting BM!
 
Re: AI barrel won't hold quarter moa after 5000 ro

I cant wait to see what this barrel will do @ 8k or so. I have seen a lot of good barrels but this one is tough! How about we start a high round count thread? Something like 5k plus for 308, 2k plus for the 6.5 cals, ect. I think it would be intrested to see how high mileage barrels are doing. Just a thought.
 
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