.223 vs. 5.56

Discussion in 'AR-15 Discussion' started by blackguns3000, Dec 23, 2011.

  1. blackguns3000

    blackguns3000 New Member

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    I'm considering investing in a large amount of ammo. My gun is an M+P Ar15(m4) 16" with a 1/9 twist (common I know).
    I have a lot of experience with all types of targeting, mainly just with .223. the 16 inch barrel has suprised me with long-distance sharpshooting, i.e. 3 or 4 hundred yards giving a tight group of around "12 at that distance. (With .223.)
    I like that the NATO rounds pack more punch, but do we sacrifice accuracy with them as opposed to .223? Should I get some of both when I order, and if so should I 50/50? Assuming both have their pros and cons, I will buy some of each, but which one, if either, is more practical and how. And am I wrong about 556 being less accurate than 223 at long distances?
     
  2. Quentin

    Quentin New Member

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    Actually .223 tends to be less accurate than 5.56 in a 5.56 chamber. It can be very accurate in a .223 chamber and of course you shouldn't use 5.56 in the .223 chamber. Assuming your chamber is 5.56 why not try a little of both and in different bullet weights so you can see what works best.
     

  3. kaido

    kaido New Member

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    I'm not going to pretend I know a whole lot about guns and how small differences effect ballistics, bu I will say that because the 5.56 is a hotter round it would most likely be more accurate out to farther ranges with more stopping power.
    Not sure if it matters or not, but the cases are also a tad but thicker when it comes to the 5.56.
     
  4. blackguns3000

    blackguns3000 New Member

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    Thanks Quentin. I had suspected that more power equals more accuracy, but was told otherwise by a couple guys that do not know about what they are talkin. Lol. And fortunately my gun is chambered for 5.56 so I will go for those more. I guess the only drawback is they are slightly more expensive, but as far as I'm concerned its worth it.
     
  5. willfully armed

    willfully armed New Member

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    No one on this board can tell you what ammunition will be more accurate in a gun they've never fired nor loaded for.

    Every barrel is different.



    Your twist rate makes 50-65grain bullets ideal.
    There aren't any 5.56 loadings that were loaded for exceptional accuracy except the mk262 77gr hpbt.

    Therefore, the plethora of variety available in 223 will likely suit you best.
     
  6. blackguns3000

    blackguns3000 New Member

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  7. blackguns3000

    blackguns3000 New Member

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