Quantcast
  1. Sign up now and join over 35,000 northwest gun owners. It's quick, easy, and 100% free!

Which Ammo? Chambered in .223/5.56 x 45 mm NATO

Discussion in 'Rifle Discussion' started by Russ1590, Feb 1, 2013.

  1. Russ1590

    Russ1590 Clark Co Member

    Messages:
    74
    Likes Received:
    26
    First things first... This is a pathetic question and only one a complete idiot or noob would ask... I'm one of the two, potentially both...

    Now that that is out of the way...

    The barrel in the rifle is a stainless steel match grade with a 1:8 twist.

    So maybe the way to ask this question and look like less of an idiot would be to say...

     
  2. Trailboss

    Trailboss Vancouver, WA Well-Known Member

    Messages:
    1,042
    Likes Received:
    1,043
    Your barrel should shoot anything 55 grains or heavier quite well.
     
  3. Grunwald

    Grunwald Out of that nut job colony of Seattle, WA Well-Known Member

    Messages:
    1,833
    Likes Received:
    1,175
    .223 and 5.56 are NOT the same.
    Check the lower receiver for the exact chamber.
    If it is 5.56 then you're OK to shoot both.
    However if it is marked as .223 do not shoot 5.56 out of it.

    55 grain is your normal cheaper option and fine for practice.
     
    Joe13 likes this.
  4. akmewon

    akmewon clackamas Active Member

    Messages:
    413
    Likes Received:
    161
    Arent you backwards on that ....as long as barrel or upper is chambered for 5.56 both are fine but if it says .223 then only .223 out of that barrel.If I am wrong how would lower even know what ammo is in chamber?
     
    Stomper, Joe13 and ZigZagZeke like this.
  5. Skang

    Skang WA Well-Known Member

    Messages:
    1,708
    Likes Received:
    405
    If barrel is stamped with 5.56, you can shoot both, not vice versa.
     
  6. Russ1590

    Russ1590 Clark Co Member

    Messages:
    74
    Likes Received:
    26
    Thanks you all. I'll double check that. Much appreciated. And sorry for the pathetic question.
     
  7. Trailboss

    Trailboss Vancouver, WA Well-Known Member

    Messages:
    1,042
    Likes Received:
    1,043
    No worries. Everyone here started by asking questions.
     
  8. gaijinsamurai

    gaijinsamurai Beaverton Well-Known Member 2016 Volunteer

    Messages:
    918
    Likes Received:
    677
    These days, buy whatever is available at an affordable price.

    .....like others have posted, your weapon is a 5.56 so you can shoot that and .223.
     
    Brutus57, Stomper and Joe13 like this.
  9. DoubleTapDrew

    DoubleTapDrew Oregon Well-Known Member

    Messages:
    1,078
    Likes Received:
    377
    Is the barrel marked 5.56? .223 has a shorter leade (the area in the chamber before it contacts the rifling) and can be more accurate but using hot 5.56 ammo can cause a pressure spike.
    If it's 1:8 I'd bet it's 5.56 since .223 ammo is usually using lighter bullets (<55gr) and doesn't require that aggressive of a twist rate, more like 1:10 or 1:12. You should be good up to 78gr or so but in the upper end of that spectrum you'll need to test the ammo to make sure it works in your rifle.
     
  10. Nwcid

    Nwcid Yakima and N of Spokane Well-Known Member

    Messages:
    3,593
    Likes Received:
    1,480
    While this normally makes sense in the case of the AR it is a POOR choice. There are so many AR's in so many calibers the only RELIABLE way to tell the caliber of an AR is what is stamped on the barrel.
     
    Joe13 likes this.
  11. Grunwald

    Grunwald Out of that nut job colony of Seattle, WA Well-Known Member

    Messages:
    1,833
    Likes Received:
    1,175
    you're right (as is Skag).
     
    Stomper and Joe13 like this.
  12. Captain O

    Captain O St. Helens, OR Well-Known Member

    Messages:
    588
    Likes Received:
    912
    It is good to ask questions. Buying ammunition blindly can get you into trouble.

    All the best.
     
    Stomper and MilitantBEEMER like this.
  13. PaulB47

    PaulB47 Hillsboro Well-Known Member

    Messages:
    1,839
    Likes Received:
    2,557
    Where is it normally stamped on a barrel? Under the handguard? :confused:

    I know you're not supposed to shoot 5.56 in a gun marked .223, but I wonder really how dangerous it is. We're not talking "blowing up the gun" dangerous, are we? It's hard to imagine a bolt gun having trouble with it...

    BTW if the gun is marked ".223 Wylde", then both kinds of ammo are supposed to work. Just to add confusion to the picture!
     
  14. Captain O

    Captain O St. Helens, OR Well-Known Member

    Messages:
    588
    Likes Received:
    912
    Do you really want to risk it? Why abuse your rifle?
     
  15. Page.k

    Page.k Seattle Active Member

    Messages:
    342
    Likes Received:
    26
    The 223 Wylde is a hybrid .223/5.56 chamber that should be able to use either type of ammo. The chamber is a mix of the two chambers that should give you a wider range of ammo loads that it can safely use. It's not a SAAMI spec chamber so if you start reloading it's best to ask your barrel maker to cut you a set of reloading dies or recommend a type to buy. The chamber can be best called a Wildcat chamber that is widely used. Like some US made 7.62X51mm NATO rifles have 308 chambers. o_O
     
  16. Page.k

    Page.k Seattle Active Member

    Messages:
    342
    Likes Received:
    26
    WoW this is from back in 2013....

    "Rise from Your Grave!" - Altered Beast - YouTube
    youtube.com/watch?v=hihEhsdwiIk
     
    Stomper likes this.
  17. rick benjamin

    rick benjamin USA, Or, Damascus Secure the drama Silver Supporter 2016 Volunteer

    Messages:
    2,434
    Likes Received:
    2,767
    Brutus57 and Stomper like this.
  18. Boboclown

    Boboclown North Carolina Well-Known Member

    Messages:
    1,194
    Likes Received:
    1,126
    5.56 has thicker brass so to make up for it, faster powder is used. This results in higher chamber pressure. So yes you run that risk. Might be rare, and the gun blowing up could be the result of something else, but its possible.
     
  19. Stomper

    Stomper Oceania Rising White Is The New Brown Silver Supporter

    Messages:
    12,910
    Likes Received:
    19,535
    I know this is a necro-thread, but since it's an important issue because AR15 platform rifles are so ubiquitous I'll just point out for the benefit of any lurkers around here that are trying to learn something...

    I own a Colt AR15A2 Sporter-II that is marked ".223 Remington" on the lower receiver, yet the barrel between the flash hider and front sight post is stamped "CL MP 5.56 NATO 1/7". That means it's chambered for 5.56 NATO ammo (safe to also shoot .223Rem), "MP" (sometimes it'll say "MPI") means the barrel was tested for (internal/external) flaws using the "Magnetic Particle Inspection" method, and the "CL" means the bore is Chrome Lined.

    Go with what's stamped on the barrel, as shown in post #17 ;)
     
    Arleyg, rick benjamin and Joe13 like this.
  20. Logan Wilson

    Logan Wilson Bronze Supporter Bronze Supporter

    Messages:
    92
    Likes Received:
    134
    I have a .223 Wylde is this barrel designed to shoot both rounds? so far i have only put .223 through it.