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Thread: 6920 accuracy?

  1. #21
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    Hey IG, anything you would personally recommend as for as ammo? 62,55,75 grain? What do you use?

    Kenken
    The use of profanity shows a lack of vocabulary. me

    After extensive gunsmithing, my rifle is capable of sub-moa one shot groups all day long. Outstanding accuracy. me

  2. #22
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    I shoot whatever's clever. But I stay away from the Bears, Tula, etc.. Hornady Steel TAP, M193, M855 have all proven to be good in my stuff.



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  3. #23
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    Quote Originally Posted by Litpipe View Post
    At 50yds would weight matter? I have a basic(very basic) understanding of grain wgt and twist, Im not challenging your statement, Im asking because I honsetly dont know.
    POI can be noticeably different at 50 yards when talking about slow fire supported target shooting.

    These were shot at 50 yards in a stock (other than Geissele trigger) 6920. No sandbag or other artificial support, just the magazine on the deck, and shot somewhat quickly. Some flyers (like the one RA556B) were all my fault. Notice how far off the POI is on the 50gr TSX.

    Three of the five weren't even on the paper! (but I know they were down there to the bottom left, where the arrow points, as they were on the cardboard backing)

    Last edited by Warp; 02-17-13 at 16:43.

  4. #24
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    What you are missing is that once you go below 55gr. the difference is going to be more pronounced. I have shot 55 and 62 back to back with very little difference. I did see a difference from 62 to 75gr.

    Quote Originally Posted by Warp View Post
    POI can be noticeably different at 50 yards when talking about slow fire supported target shooting.

    These were shot at 50 yards in a stock (other than Geissele trigger) 6920. No sandbag or other artificial support, just the magazine on the deck, and shot somewhat quickly. Some flyers (like the one RA556B) were all my fault. Notice how far off the POI is on the 50gr TSX.

    Three of the five weren't even on the paper!




    Owner/Instructor at Semper Paratus Arms

    Facebook: https://www.facebook.com/SemperParatusArms/

    Semper Paratus Arms AR15 Armorer Course http://www.semperparatusarms.com/cou...-registration/

    M4C Misc. Training and Course Announcements- http://www.m4carbine.net/forumdisplay.php?f=141

    Master Armorer/R&D at SIONICS Weapon Systems- http://sionicsweaponsystems.com

  5. #25
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    Quote Originally Posted by Iraqgunz View Post
    What you are missing is that once you go below 55gr. the difference is going to be more pronounced. I have shot 55 and 62 back to back with very little difference. I did see a difference from 62 to 75gr.
    True. But those 50gr bullets are all copper and thus longer than typical/standard lead core bullets would be at that weight, correct?

    I'd have to look it up, but I'll bet the 50gr all copper bullets aren't far off the lenght of 55gr lead core?

  6. #26
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    Opposite experience.I bought two 6920's in December.One remains unfired,the other very accurate with 55,62,69,and 75 gr ammo.I havn't even touched the sight setting on it,and am using the carry handle sights just as it came from the box
    I need to take the time to really zero when I can,all this was 200 yds and in. It could change.
    Last edited by DocH; 02-17-13 at 17:22.
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  7. #27
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    Quote Originally Posted by Airhasz View Post
    Word to the wise, do NOT shoot others hand loads...
    ^ This. Shooting any unknown handloads are asking for trouble It looks like the Brown bear ammo may have been the issue.

    Better ammo is more expensive and harder to find, but it usually has better results in your rifle.
    Last edited by kcara; 02-17-13 at 17:54.

  8. #28
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    Re: 6920 accuracy?

    Quote Originally Posted by kenken View Post
    Hey IG, anything you would personally recommend as for as ammo? 62,55,75 grain? What do you use?

    Kenken
    If you are trying to find the capabilities of your 6920 I would suggest trying some of the Black Hills MK262 Mod1, their (or others' match loaded) .223 77 or 69 grain SMK loads or the 75 grain Hornady TAP loads. These should reveal what you might expect from your 1:7 twist barrel and I might add, do very well in mine. The comments regarding POI shift between loads are spot on. In my (scoped) 6920 the MK 262 prints the 77 grain SMK more differently from the Black Hills . 223 match loading with the same bullet than one might think.

    Sent from my Droid RAZR MAXX using Tapatalk2

  9. #29
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    FWIW: Prvi Partizan .223 75gr BTHP match ammo is pretty good for the money. Right around the election they were $9.50/20 at SGAmmo.

    The best part? In my 6920 the POI is, for practical purposes, identical to Federal XM193.

    POI in my 6920 is basically identical for:

    Federal XM193 (what I use to set the zero)
    Federal XM855
    Prvi Partizan 75gr match BHTP
    Prvi Partizan M193

    But PMC XTAC XP193 has a little different POI, despite supposedly being an M193 like the others.

    You just need to go try different loads to find good complimentary rounds.
    Last edited by Warp; 02-17-13 at 19:26.

  10. #30
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    My 6920 really likes these loads, if you're looking for accuracy checks...

    Mk262 (Mod 1)
    BHA 60 VMAX, 68 OTM
    Hornady 60 TAP
    Speer 55 GDSP (24446)
    Corbon 55 BK

    There are more, but those have distinguished themselves in the gun.
    Last edited by ST911; 02-17-13 at 19:36.
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