Calling all AR-15 Shooters (paticularlly carbines)

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Tang419

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What kind of accuracy are you getting, with factory and with pet handloads with a 16" barrel ? Is it possible to get varminter accuracy without a bull barrel and free floated handguard ?

While we are on this subject, is a bull or heavy barrel, really needed to get the upmost accuracy out of a gun, or does it really shine when a lot of rounds are going to be fired ?

Thanks !
 
When tested, I have found mine will get around 1 MOA if I do my part.

Is that good enough for your needs?

Note that barrel length doesn't determine accuracy after a certain point and carbines are well beyond that point.
 
My Stag Arms model 3L makes minute of angle 3 shot groups at 100 yards using LC 67 military ammo. The scope is the excellent Leupold FXII 4X33.
 
Sub 1 MOA, probably capable of better. That's out of 2 Bushmasters, a 20" and a 16". The AR-10 will do .3 MOA (1 hole).

Dan
 
mine isnt the heavy bull barrel, but it is the hbar version.

lots of folks dont care for the hbar model but i just love it.

its not that much more accurate, maybe 1/2" better than a comparable m4, but for me its perfect.

its really not that much heavier.

i think an m4 is about 6.3lbs
the hbar model i have is 6.8, so its only about 8oz more.

i get about 1/2moa pretty easy with handloads.

dont shoot factory so i cant really say on that.

heres a link to another thread with a few target pics and one of the rifle.

its a bushmaster.

http://www.thehighroad.org/showthread.php?p=5088537#post5088537
 
I am getting 1/2-3/4 MOA out of my 1:9 twist 16" bull barrel Oly arms AR-15 with a 40 gr. Nosler and 27.5 grains H335 with the OAL as long as I can go and still fit in the mag.
 
My old Colt SP-1 pencil barrel carbine & EOTech will shoot under an inch with handloads.

About 80 yards:
Nosler 55 grain Ballistic-Tips -- Win 55 grain BTFMJ
EoTecGroup.jpg

rcmodel
 
With good ammo mine would do about 1-1.25 MOA. Then the barrel became pitted. We'll see what it does with a new barrel, as I am going to be making a big upgrade in that department when I get a new barrel.
 
not sure. I have iron sights on mine and i can't shoot them very well yet. have thought about scoping it to see what it will do.
 
Not to hijack the thread -but- comments on the care, feeding & experience with the M15A2 (556), accuracy etc, heavy 20" bbl. All help, & comments appreciated. Thanks fellows.
 
Never really measured the shot groups, but mine makes tight groups even with a 1x32 scope (no magnification at all).
Mine is a heavy barrel, its a bit front heavy (not as bad as some might think), but I love the way it shoots.
Picture063.jpg
 
With a bipod and rear sandbags I can get 2-3" groups, however this is with mil-spec 5.56x45mm ammo. I'm sure using higher quality .223 match or varmint rounds, as well as magnified optics, will yield much better accuracy (although I have NM/DCM sights, they seem to help).

I'm using a Bushmaster carbine with a 16" M4-profile barrel, with C7A1/A1 improved upper, and National Match A2 sights.
 
000Buckshot,

Not sure what caused the pitting, the rifle was always cleaned after being fired and the bore was always oiled after cleaning. The pitting occurs about 1/2" from the muzzle and is visible to the naked eye with the aid of a flashlight. I am quite perplexed by this, as no other pitting is evident anywhere else in the bore.

The barrel is a 1/7 twist chrome lined CMMG unit, in a CMMG upper receiver. I made several attempts to contact CMMG about the issue but the line is always busy during normal business hours, and every attempt at returning my message failed on their end. When I would try to call back, I just got the busy signal on the other end of the line.

Given my experience with CMMG products and service (or lack thereof) I would recommend not purchasing anything AR related from them. At least not if you ever want to have it serviced should problems arise. They might take care of the problem, but I will never know apparently because they seem to have only one single phone line that is always busy, and from the sound of it only one individual that takes care of all "customer service".:banghead:
 
rcmodel, how do we know thats not a really huge target and you just made it look like 9/16th and 1 7/8th inch groups. you should ALWAYS toss a dime in the picture. ive convinced my wife that this |---------------------------------| is nine inches and tossed out all messuring devices in the house. could you been pulling the same tom foolery as myself., hmm Mr rcmodel hmmmm

no but really, my m4 barrel would get 2 inch groups at 100 yards, I didnt know they got so slim behind the handguard till I took it off to free float it, my buds A2 ? I think it is has a factory bushy barrel that shoots 1 inch to 1 1/2 groups.
 
Getting 1 moa in a M1S chrome-lined 16" heavy 1-9 with a free float YHM
quad rail and 75 gr wolf gold. Has a "few" thousand rds thru it.

Lucky to get 3 moa in a mixed bag 16" chrome-lined 1-7 M4 cut with anything
of any weight from 55 to 75. Has no more than 2k thru it. No improvement
even with great optics. Not free floated.

1 to 3 MOA with a Bushm 14.5" w/ Permanent AK brake depending on ammo.
Has 10+k rds thru it. Not free floated.
 
with my 14.5 barreled SDI m4, and ACOG, I can constantly hit a volley ball at 300m... I let you do the maths to find the MOA precision..
 
rcmodel, how do we know thats not a really huge target and you just made it look like 9/16th and 1 7/8th inch groups. you should ALWAYS toss a dime in the picture.
Click to expand...
.223 bullet holes are still .223 bullet holes.
Measure or compare them to the group measurements.

I fail to see what good a dime in the picture would do anyway.
I could easily toss a dime on the target after shooting it at 10 yards and not 80 yards like I said I did.

Bottom line, you either believe me, or you don't!

rcmodel
 
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