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7.62 or 5.56

Discussion in 'Rifle Country' started by bcuster, Feb 9, 2008.

  1. bcuster

    bcuster New Member

    I'm new to the AR15 world and want to buy one within the next couple of months. Does anyone have a preference of 7.62 caliber vs. 55.6 caliber. Any help would be greatly appreciated.

  2. RockyMtnTactical

    RockyMtnTactical Well-Known Member

    I like 5.56 because it is far more common to find quality parts and mags...

    More importantly I think the 5.56 fits my purposes and excels in urban environments.

    You really need to ask yourself what it is you are going to want this AR to do...
  3. TexasRifleman

    TexasRifleman Moderator Emeritus

    I'll draw down the wrath here but it's my opinion that the AR design is not the best available for the 7.62x51.

    If you want AR, go 5.56. If you need 7.62x51 there are much better choices, apologies to those with .308 ARs, just my opinion, feel free to tell me how wrong I am :)
  4. atek3

    atek3 Well-Known Member

    if you search the archive here you'll find a thousand threads hashing this one out but in general i'd agree with the previous posters.

    The AR-15 in 5.56 is a great gun with tons of aftermarket support. AR-10 type rifles are considerably heavier and more expensive (both to buy and to shoot).

  5. Seafarer12

    Seafarer12 Well-Known Member

    you talking about 7.62x39 or 7.62x51 ?
  6. Professor Gun

    Professor Gun Well-Known Member

    I have ARs in 5.56mm and in 7.62 X 51mm. Love them all. I also have an
    M1A in 7.62 X 51mm that I would never part with.

    Handle as many varieties as you can, get the one you like best and your checking account can handle. Practice with it a lot.
  7. casio02478

    casio02478 Well-Known Member

    +1 on the 5.56. By going this route you can cut down on the ammo cost and a greater variety of rifles to choose from.
  8. Samuel Adams

    Samuel Adams Well-Known Member

    +1 on the 7.62. I loved the M-1A and M-40 I used to have (still weeping). In addition, there is a big reason M-14s are being taken out of storage and sent back into service.
  9. orionengnr

    orionengnr Well-Known Member

    My first thought was that he was talking 7.62 x 39. But none of us knows for sure.

    This is a good example of why it is important to be clear in your thinking, and to express yourself clearly as well...
  10. possum

    possum Well-Known Member

    i prefer the 5.56 for what i am gonna be using my ar for, and the niche that it fills. the 7.62 ar's are nice, and since i already have a 5.56 ar then a 7.62 might be something for me too look at later, but i take the 5.56 first and foremost.
  11. Seafarer12

    Seafarer12 Well-Known Member

    I think he needs to clearify it. I mean if he is talking about a 7.62x 39 most of these posts don't mean a thing.

    If he is just talking about the caliber purely. I got to say 30 caliber. Makes a bigger hole. Most of the time it has more punch. I mean a 22 is good for paper, little critters, cans.
  12. BigMike66

    BigMike66 Well-Known Member

    As so many others have already posted: what is your intended use?

    I spent considerable time researching which caliber for my first AR. I was dead set on 6.8 SPC because it fit my needs for an "assualt" rifle. My intended use would was for when SHTF; meaning 100 yrds or so. The 6.8 far outperforms the 5.56, in this respect.

    The 6.8 is NOT readily available as I had hoped (ATT, but may change in time). So, when SHTF, I need to consider what everyone else is using for when I need to pick-up whats left on the street. Unless we're invaded, it won't be 7.65, it'll be 5.56.

    The .308/7.65 can be considered a "battle" rifle. Good out to a 800 yards. But with that comes extra weight, and the ability to control recoil (semi-auto not bolt).

    Check out this excellent article:


    I have a NIB AR-15 in 5.56 sitting here.

  13. lanternlad1

    lanternlad1 Well-Known Member

  14. chauncey

    chauncey Well-Known Member

    I know the AR was originally designed for 7.62, but most parts on the market are for 5.56. for your first 7.62 rifle, I'd suggest something with easy to find, (mostly) standardized parts (I don't think all 7.62 AR parts are interchangeable). for 7.62, why not try M1A, FAL or HK clone?
  15. KC&97TA

    KC&97TA Well-Known Member

    This is simple; Buy both a AR15 and a AR10... sorry Black Rifle Disease... 1911 sickness, I'm past the point of no return.

    I like my M4-gery for it's compactness... it's only two differences between my issued and personal its; 1-1/2" longer and no select fire.

    I like my wifes A2 stocked NM, for it's long range accuracy, I also like her $300 gissel trigger, when I put my extra 18" SPR upper on it with a bi-pod.

    I'm currently building a .308 on a Fulton FAR lower, it's going to be a 20" upper, haven't decided on a stock???? I want to hunt Deer with it, other wise it's just another toy.

    For those of us who've chosen both, they all have a different purpose, but they all could be used for the same thing. One of the next projects on the list is going to be a 6.8spc upper... that will make 2 extra uppers... BRD is telling me to buy 2 more lowers but the state of CA is telling me that I should just stick with my 2 untill I go to a more friendly state, were I won't have to nuter my "sport utility rifles".

    6.8spc is another story of itself, basically a sub-short action .270, it still hasn't caught on like alot wanted it to, no it's not used in the General Army or Marine Corps, it's more popular in the civilian sector, pretty much guys like me who need another excuse to buy something as our wives spend outrageous ammounts of money on hair, nails, make-up and shoes ;)

    AR15's are standardized though, which makes tricking them out easy, pretty much like a mans Barbie Doll, yes I just compared a "semi-automatic sport utility rifle" to a plastic doll. AR10 style rifles aren't, there are 4 players in the .308 game; Armalite, DPMS & Fulton, Knight's Armament and recently RRA... (if you find a Bushmaster .308... RUN AWAY it has Zombie Plauge on it). All 4 companies, use different lowers, uppers and magazines.

    HOLY DIVER Well-Known Member

    stick with 5.56 in my opion......7.62x39 is a good round if you shooting under 150yd and if your shooting under 150yd all you need is a ruger mini-30
    an AR-15's strong point is its allot more accurate than any outher combat rifle
    if you chamber it in 7.62x39 its realy no better than a AK-47 or mini-30
    just my opion(please take it easy on me)`
  17. Clint C

    Clint C Well-Known Member

    I would go with the 5.56 not any 7.62. The 5.56 is more versatile unless you plan on shooting through cement blocks and being cool looking infront of your friends. Also make sure you go with the 5.56 not the .223 chamber.
  18. benEzra

    benEzra Moderator Emeritus

    In an AR, I'd prefer the 5.56x45mm model. If you want a heavier caliber in an AR-15, you can always step up to a 6.5mm Grendel or 6.8mm Remington upper later, but you can't retrofit an AR-10 to make it as light and compact as an AR-15.
  19. Bazooka Joe71

    Bazooka Joe71 Well-Known Member

    I usually try not to pass judgement, but I'm begining to wonder if the OP was just another pot stirrer...He made a post about two calibers that frequently get argued and has not even bothered to check the responses since he posted(last activity 2/8/08 @ 4:19), not to mention we don't even know what 7.62 he's talking about...Last time I checked, there were a few of them:)
  20. chauncey

    chauncey Well-Known Member

    we've Been TRICKED!

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