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AR rifles ammo sensitive?

Discussion in 'Black Rifle Forum' started by zukyota, Jan 28, 2011.

  1. zukyota

    zukyota

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    Tried to use search but for some reason it doesnt work on my droid phone. My question is this, is it hard/ expensive to find & shoot good reliable ammo in 1/7 twist barrels? Im looking at buying a good AR, probably BCM, but was reading cmmg website & they say certain ammo will void their warranty. Not looking to get flamed here, just trying to get the best most reliable way to plink & defend the home. Thanks.
     
  2. fuzzy03cls

    fuzzy03cls

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    All brass ammo should run reliable.
    The ammo you are hearing about is steel case ammo. Like Wolf/tula, Brown bear/silver bear
    If your AR is decent it should run the bear ammo fine. Wolf ammo is very inconsistent. Some AR's eat it all day long, Some only sometimes & some choke on it.
    Your going to have to try it & see with steel case.
    My AR's run everything fine.
    It's also recommended to shoot a few hundred rounds of brass ammo 1st before trying steel case.
     

  3. uzimon

    uzimon team ftp

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    my colt 6920 worked even with the low powered zinc russian hollowpoint
     
  4. NailShooter

    NailShooter

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    I have seen some AR's short stroke on 223 and run 100% on 556, both being brass cased. Just sayin'. Regards,

    Nail
     
  5. Hedo1

    Hedo1

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    Most will run on anything but like any rifle will show a preference accuracy wise. A 1 in 7 shoots very well with a heavier bullet in general. 62 or 69 for most shooting. Heavier 75 or 77 gr for longer range.
     
  6. zukyota

    zukyota

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    Any probs with pmc brass ammo ?
     
  7. fuzzy03cls

    fuzzy03cls

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    Nope. Runs for pretty much everyone. Accuracy isn't great though.
     
    Last edited: Jan 28, 2011
  8. zukyota

    zukyota

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    What have you found that is the best for both ?
     
  9. XDMerciless

    XDMerciless

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    Assuming everything on the gun is good to go, staked gas block, gas key, extractor, buffer spring, good magazines, etc, and you have problems with ammo - you can play with the buffer weights from an carbine to H3. For underpowered stuff steel stuff Wolf/Brown Bear I'll use a carbine weight, for 5.56 (XM193 or surplus), I'll swap to the H buffer. But I have yet to experience a problem when using a carbine buffer on 5.56 loads, though I am using a Young's NM BCG, that is somewhat heavier than the OEM BCGs so you may or may not have problem - go shoot and see. It is also documented that if you switch from steel to brass in your shooting session, you could experience a "sticky chamber", as there is a variance in steels expansion compared to brass against the chamber walls, and thus over time with shooting steel the carbon will build up, increasing the tolerance of the chamber walls and therefore can induce a possible malfunction when switching to brass casings.

    Check it out here:
    http://www.theboxotruth.com/docs/edu18.htm
     
    Last edited: Jan 28, 2011
  10. Gunnut 45/454

    Gunnut 45/454

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    I have run only brass through mine- a carbine and a rifle. PMC, AE, Fed and alot of XM193 and of course reloads. Both guns have worked perfectly. I found the PMC to be weak and not accurate, great brass for reloads! The steel cased ammo might be cheap but they are dirty and cause the feed problems you see and hear about! Some AR's run fine with them others not so much!:whistling:
     
  11. boomhower

    boomhower

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    Some rifles shoot steel fine and other have issues, really no way to know other than try it out. Even between the same model from the same manufacturer. One will run fine and the other will choke on it. My DD eats Tula fine.
     
  12. ScrappyDoo

    ScrappyDoo Tacticool brah!

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    I have a brand new Bushmaster that I have began stocking the 3.59 Cheap Russian stuff. For every person claiming Bushmaster is so Terrible of a rifle you must feed it PDX-1 5.56 or it will self distruct and or self-immolate, ive read 5 owners refute that. Mine is pretty damn right on , do I sometimes wish I had bought a Colt and or BCM ? Yeah I guess so , for Bragging factor , BUSHMASTER is supposed to be extremely rifle ammo sensitive and I ain't seen it yet
     
  13. mjkeat

    mjkeat

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    Buying a Colt or BCM has nothing to do w/ bragging factor. As far as BCM goes its about getting top of the line features as standard and for the price of many rifles that you can only get these features as options.

    A lot of times changeing out buffers and/or springs will correct cycle issues w/ Russian ammo.
     
  14. ScrappyDoo

    ScrappyDoo Tacticool brah!

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    Ok let me rephrase it, the only reason I would have rather have had a Colt or BCM over the Bushmaster I bought would be for bragging factor, better now that I semantically corrected that ? And the few hundred dollars I saved on my Bushmaster allowed me to purchase a absolute complete Magpul setup for it: MOE Hand-guard and MVG Vertical Grip, Rear MBUS Sight, MOE Pistol Grip, MOE Trigger Guard, CTR Stock, (Purchased separate PMAGS cause I need 15-rounders ) and even the MS2 Stock. So I am actually probably more happy with my now Magpul/Bushmaster in OD Green than I would have been with a basic Colt Match Target 6400C . Also I had a little bit of money saved after purchasing all my Magpul stuff because not only did I get the Bushmaster on deal I got all the Magpul on excellent sales, then I LUCKED Into that Aimpoint Micro R-1 $299 sale. So to be complete, I honestly am very happy with that setup. Now if I had a Colt or BCM, honestly, the only thing I'd like about it more is the name. I will never have a situation where I need the "betterness" in that. But hey, sometimes I wish it had that name on the receiver.
     
  15. mjkeat

    mjkeat

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    Bushmaster seems to suit your type just fine.
     
  16. ScrappyDoo

    ScrappyDoo Tacticool brah!

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    Hahaha ok man. Thanks. Stay safe.
     
  17. mjkeat

    mjkeat

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    After reading my prior statement I appologize. I didnt mean it on a personal level. What I should have said was, Bushmaster seems to suit that way of thinking.
     
  18. SGT HATRED

    SGT HATRED

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    I always thought bushmaster was good quality... Am I wrong to think that?
     
  19. mjkeat

    mjkeat

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    Well they are known for not producing the best quality. They are hit and miss with their specs (chambers and such) and have horrible customer service.
     
  20. faawrenchbndr

    faawrenchbndr SAC trained warrior CLM

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    I believe they have went a bit down hill the last few years.