AR15 accuracy-What's reasonable to expect?

AR15 accuracy-What's reasonable to expect?

This is a discussion on AR15 accuracy-What's reasonable to expect? within the Defensive Rifles & Shotgun Discussion forums, part of the Related Topics category; I shot my AR15 for the first time today and was a bit disappointed in my shooting skills and/or my rifle's accuracy. Shooting PMC 55 ...

Page 1 of 3 123 LastLast
Results 1 to 15 of 36
Like Tree13Likes

Thread: AR15 accuracy-What's reasonable to expect?

  1. #1
    Member Array hbc's Avatar
    Join Date
    Jan 2009
    Location
    IN
    Posts
    239

    AR15 accuracy-What's reasonable to expect?

    I shot my AR15 for the first time today and was a bit disappointed in my shooting skills and/or my rifle's accuracy. Shooting PMC 55 gr. FMJ ammo, I was getting 100 yard, 5-shot groups of about 1.5 inches. I'm probably an "average" shooter in terms of accuracy. Does this group size seem to be within the normal/typical/expected range to you? What's reasonable to expect? What group size do you typically shoot (no fudging)?


  2. #2
    Moderator
    Array bmcgilvray's Avatar
    Join Date
    May 2007
    Location
    Texas
    Posts
    10,098
    Sounds reasonable. Scope or iron sights?

    I have an early 1970s Colt SP-1 and, with its factory original iron sights, it's good for 1 1/2-inch 5-shot groups most any time out from the bench rest at 100 yards with favored loads. It'll occasionally crowd 1 1/4-inches which is about as tight a group as it has ever done with me behind it. I sometimes think those tighter groups are a happy accident.
    Skygod likes this.
    Charter Member of the DC .41 LC Society

    “No possible rapidity of fire can atone for habitual carelessness of aim with the first shot.”

    Theodore Roosevelt, The Wilderness Hunter, 1893

  3. #3
    Member Array hbc's Avatar
    Join Date
    Jan 2009
    Location
    IN
    Posts
    239
    Groups shot with a 2.5-8X36 scope, on the highest power setting.

  4. #4
    Moderator
    Array bmcgilvray's Avatar
    Join Date
    May 2007
    Location
    Texas
    Posts
    10,098
    Hmmm...

    What about ammunition? What are you feeding it? My rifle can go 2 inches or 2 1/2-inches with some factory FMJ loads or with a handload it just doesn't like. Like so many rifles it loves to be fed meticulously assembled handloads using premium bullets. Sierra 50 grain flat-base soft point spitzers, or 55 grain boat tail spitzer soft points work very well and aren't quite as pricey as the Sierra Match 52 grain boat tail or 53 grain flat base bullets it really likes. Its barrel is the old standard 1-12".

    Which twist rate does your barrel feature?

    Do you like the trigger pull on your rifle? Is it heavy or creepy? A nice crisp trigger can work wonders for group size.

    Which brand of AR are you shooting?

    What about bench rest technique? Are you using a rifle rest and appropriate sand bags, a couple of 2X4 blocks screwed together and covered with green astro-turf, or a rolled up jacket?

    Don't have any notes on hand tonight but believe I chronographed some PMC 55 grain loads some years ago. They gave a somewhat higher velocity than M193 ball. They also were not all that accurate in my rifle as I recall.
    tacman605 likes this.
    Charter Member of the DC .41 LC Society

    “No possible rapidity of fire can atone for habitual carelessness of aim with the first shot.”

    Theodore Roosevelt, The Wilderness Hunter, 1893

  5. #5
    Member Array hbc's Avatar
    Join Date
    Jan 2009
    Location
    IN
    Posts
    239
    I was shooting just basic PMC plinking ammo, 55 gr. FMJ. My disappointment may have more to do with me than my rifle and scope combination - I have a JP Enterprises SCR11 rifle, 18 inch barrel and a Leupold Mark 4 2.5-8x36 scope (pricey stuff).

  6. #6
    Moderator
    Array bmcgilvray's Avatar
    Join Date
    May 2007
    Location
    Texas
    Posts
    10,098
    JP - SCR-11™ Rifle

    Is this link a pretty good description of the rifle?

    I'm not that familiar with AR 15 variants, accessories, accurizing, quicker barrel twists, use with heavier .224 diameter bullets and such. I've only played with my own rifle to any extent and other than smoothing up the trigger, have only gone at accuracy efforts through the fine-tuned handload. I'm not even a huge fan of AR 15s or the basic design but do readily admit that the design rewards the accuracy handloading effort with notably better groups.

    The linked sight indicates that your rifle came with a barrel featuring 1-8" twist. It should be in top form with anything from 55 grain bullets on up. I've not worked with a 1-8" barrel though. Someone else might pop on to shed more light on this. Perhaps the 55 grain bullet is "wound a little too tight" that is, possessing a little too much velocity to be optimal for your barrel. A 55 grain handload that launched bullets at "3/4-throttle" might group better than a more speedy 55 grain load.
    AR15VSCoyote likes this.
    Charter Member of the DC .41 LC Society

    “No possible rapidity of fire can atone for habitual carelessness of aim with the first shot.”

    Theodore Roosevelt, The Wilderness Hunter, 1893

  7. #7
    Member Array hbc's Avatar
    Join Date
    Jan 2009
    Location
    IN
    Posts
    239
    Yep, that's my rifle. Now if it only had a better shooter to shoot it...

  8. #8
    Moderator
    Array bmcgilvray's Avatar
    Join Date
    May 2007
    Location
    Texas
    Posts
    10,098
    I'll bet that your rifle has a significantly superior barrel and trigger-pull to my rifle just as they both sit... or stand in their respective safes, whichever the case may be.
    Charter Member of the DC .41 LC Society

    “No possible rapidity of fire can atone for habitual carelessness of aim with the first shot.”

    Theodore Roosevelt, The Wilderness Hunter, 1893

  9. #9
    VIP Member Array Taurahe's Avatar
    Join Date
    Jan 2013
    Location
    Indianapolis IN
    Posts
    3,427
    First I would try different ammo. You would be suprised by the accuracy variation between brands. All other things aside, I think 1.5", 5 shot, 1oo yd groups is quite reasonable for most applications. Its a dead wodchuck, coyote, deer, BG, etc no matter how you look at it. If you are shooting match, not so bueno. Make sure you optic mounts and bases are good and tight also, and that you are using a good secure benchrest. A good trigger can make a world of difference as well.
    ”God grants Liberty only to those who love it, and are always ready to guard and defend it.”
    ~Daniel Webster

    Your points are shallow... my points are Hollow....

  10. #10
    Moderator
    Array bmcgilvray's Avatar
    Join Date
    May 2007
    Location
    Texas
    Posts
    10,098
    Well, hit me over the head with a brick!

    It's as clear as the residual garlic taste after eating the pizza I just finished.

    You mentioned in the first sentence: "I shot my AR15 for the first time today..."

    Lack of familiarity with the arm will make some significant difference. Double this if you've not had experience with benchresting an AR 15 before today. Make another trip to the range. Pay attention to your shooting techniques from the bench such as breath control, proper trigger squeeze, laying the rifle in on the bags. You're simply going to find some better looking groups next time out, guaranteed. Don't sweat it.

    Looking back on your first post it must be said that you did quite well with your new rifle. A great majority of new owners of AR 15s first time out, are doing much worse than 1 1/2-inch 5-shot groups at 100 yards with a scoped rifle.

    If it makes you feel any better, my youngest son and I have been bantering on Skype off and on all evening. He was in the field today preparing for his annual qualification. He's a Marine and was using a newly issued M4. He's always qualified as an expert rifleman. He was repeatedly shooting groups at 100 yards today where all the holes could be covered with one spotter. He said it almost panicked him first time he saw it because the single spotter was in the center of the bull. He was wondering where the rest of his shots fell. The pit informed him that the spotter covered multiple holes. He was able to repeat this performance each string. He said the group size was under 3 inches. Of course he isn't shooting from a bench rest.
    Skygod likes this.
    Charter Member of the DC .41 LC Society

    “No possible rapidity of fire can atone for habitual carelessness of aim with the first shot.”

    Theodore Roosevelt, The Wilderness Hunter, 1893

  11. #11
    BAC
    BAC is offline
    VIP Member Array BAC's Avatar
    Join Date
    May 2007
    Location
    Tampa, FL
    Posts
    2,292
    JP rifles are race guns: it'll take a great shooter to be held back by the rifles themselves. Folks regularly getting sub-1" MOA out of their JP rifles. Hone your skills with confidence.
    AR15VSCoyote, R040607 and Skygod like this.
    RIP, Jeff Dorr: 1964 - July 17, 2009. You will be missed.


    Defensive Carry Search Tips


    Step 1 - Choose a subforum on right side under "Search in Forum(s)"
    Step 2 - Type general topic of interest in "Search by Keyword" textbox.
    Step 3 - Read results and refine/repeat as necessary.

  12. #12
    Senior Member Array Alex_C's Avatar
    Join Date
    Oct 2012
    Location
    Michigan
    Posts
    1,082
    Holy crap. I wish I was as accurate with my AR. At 100 yards my groups are about twice as large. Though I do only have iron sights on it.

  13. #13
    New Member Array GKKimber's Avatar
    Join Date
    Feb 2013
    Location
    S. Texas
    Posts
    11
    I shoot about the same ...1" grouping at 100 yds with pmc fmj 55 grain. With my Nikon M-223 8489 scope, sub 1/2 " ..could be better.
    You seem like you are on the right track...get good with iron sights, get better with a scope.
    Happy Shooting.
    Colt Ar-15 LE-6920 with Geissele trigger.
    AR15VSCoyote likes this.

  14. #14
    VIP Member Array Smitty901's Avatar
    Join Date
    Dec 2011
    Location
    Wisconsin
    Posts
    3,299
    Try a 5.56 62 gr round and you may also see and improvement. 55 is light for a 1 in 7 twist 16 inch barrel .
    With bulk ammo 2-3 MOA, some lower end one 4 MOA, My Huldar's will shoot a 1 Moa in the right hands and good ammo.
    That is what The weapons and bulk rounds will normally do however it depends on the shooter also.
    The weapon was not designed nor the round designed to be a tack driver.
    Three rounds fired if you can place a dime in the center and touch each strike your there with standard ammo and most out of the box weapons.
    Trying to shoot an AR like a sniper rifle is a waste of time, Not made for that. Mount a good reflex site on it and learn to use it as it was meant to be.
    AR15VSCoyote likes this.

  15. #15
    BAC
    BAC is offline
    VIP Member Array BAC's Avatar
    Join Date
    May 2007
    Location
    Tampa, FL
    Posts
    2,292
    LaRue, Noveske, GAP, JP Precision, and the gents of AMU would all beg to differ. Molon on AR15.com and M4C has also shown pretty compelling evidence that lighter bullets are a nonissue with 1:7 twist barrels (his best handload for his 1:7 rifle was a sub-55-gr round).
    RIP, Jeff Dorr: 1964 - July 17, 2009. You will be missed.


    Defensive Carry Search Tips


    Step 1 - Choose a subforum on right side under "Search in Forum(s)"
    Step 2 - Type general topic of interest in "Search by Keyword" textbox.
    Step 3 - Read results and refine/repeat as necessary.

Page 1 of 3 123 LastLast

Links

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Search tags for this page

accuracy of ar 15
,
accurate ar 15
,
accurate ar15
,
accurizing ar-15
,

ar 15 accuracy

,
ar 15 accuracy tips
,
ar accuracy
,
ar-15 accuracy
,

ar15 accuracy

,
how accurate is a ar15
,
most accurate ar 15
,
sub moa ar 15
Click on a term to search for related topics.

» Log in

User Name:

Password:

Not a member yet?
Register Now!

» DefensiveCarry Sponsors