Most useful Ar15 caliber (not 556) - Page 2

Most useful Ar15 caliber (not 556)

This is a discussion on Most useful Ar15 caliber (not 556) within the General Firearm Discussion forums, part of the Related Topics category; Originally Posted by Rotorflyr I don't necessarily disagree, BUT it seems (with a couple of exceptions) that AR's in x39 are problematic at best (especially ...

Page 2 of 3 FirstFirst 1 2 3 LastLast
Results 16 to 30 of 31
Like Tree38Likes

Thread: Most useful Ar15 caliber (not 556)

  1. #16
    VIP Member Array Havok's Avatar
    Join Date
    Nov 2015
    Location
    US
    Posts
    7,004
    Quote Originally Posted by Rotorflyr View Post
    I don't necessarily disagree, BUT it seems (with a couple of exceptions) that AR's in x39 are problematic at best (especially those running on a standard AR lower)....from the list, I'd either go with 6.8 or 300 BO which ever is more available around the OP
    Maybe so but there are good ones. Based on the criteria he listed, in my opinion all the other calibers are ruled out.
    Pete63 likes this.
    We get the government we deserve.

  2. #17
    Senior Member Array Gunnie's Avatar
    Join Date
    Jul 2012
    Location
    Indiana
    Posts
    1,092
    Switch from AR15 to AR10 308 would be far more versatile and in the right build fairly trim in the weight department. PSA 12.5” pistol would make a dandy truck gun.
    5lima30ret and Pete63 like this.

  3. #18
    Distinguished Member Array Novarider's Avatar
    Join Date
    Jul 2015
    Location
    East TN
    Posts
    1,618
    I have been contemplating this exact thing for a couple weeks now. I've come to the conclusion to just get an AR10 instead of converting to a different round. It's more expensive but I'd rather have 2 functional guns than 1 gun and a different upper.

  4. Remove Advertisements
    DefensiveCarry.com
    Advertisements
     

  5. #19
    Senior Member Array Stirling XD's Avatar
    Join Date
    Oct 2007
    Location
    Colorado
    Posts
    1,069
    From the list of options you are considering, I would go with the 6.8. You will get more range out of it. I would also throw out the 6.5 Grendel for consideration as well. I built one a few years ago and it is a tack driver. I can typically get .5 MOA groups out of it, but if I take my time, I can get it down to .25 MOA. It shoots better than any of my bolt guns which has led to a great deal of frustration in my bolt guns.
    Has anyone tried turning the country off and then back on again?

  6. #20
    Member Array TimGunn's Avatar
    Join Date
    Jun 2019
    Location
    State of Jefferson
    Posts
    194
    As has been mentioned the Grendel was not listed. I own all of the ones you mentioned plus. And my go to is the Grendel. I have hunted everything from black bear to pronghorn with it. It has never missed a step.Attachment 307070 Plus I own a AR10 in 308 and 6.5 Creedmoore. My Grendel is still my go to.
    Aut Pax Aut Bellum

  7. #21
    VIP Member Array LimaCharlie's Avatar
    Join Date
    Mar 2013
    Location
    Northwest Oregon
    Posts
    14,384
    I have AR-15s in 5.56X45mm, an AR-15 in .50 Beowulf, an AR-10 in 7.62X51mm, and an M1A in 7.62X51mm. They cover everything I want in semi-auto rifles.
    msgt/ret and 5lima30ret like this.
    Second Amendment: The difference between politicians and rulers.
    US Navy - US Army, Retired
    NRA Benefactor Life Member

  8. #22
    VIP Member
    Array PPS1980's Avatar
    Join Date
    Jan 2018
    Location
    The Free State of Georgia
    Posts
    2,069
    6.5 Grendel for all around use.
    224 Val for long distance shooting (less drop and drift at distance) with lighter recoil.

    The 224 has almost twice the retained energy at 600yrds over the 300Blk round. It can beat the 6.5mm Grendel in wind drift and trajectory, but the Grendel throws a larger diameter bullet
    and a heavier payload with more retained energy. So, if precision at distance is your deciding factor the 224, if ft/lbs at distance than the 6.5.

    Also, the .224 Valkyrie will essentially run through your standard AR receivers. All you will need is a .224 specific barrel and bolt. Not the plus-sized receivers typically needed for your .308 Winchester or 6.5 Creedmoor.
    MMinSC likes this.
    __________________
    I prefer dangerous freedom over peaceful slavery.
    - Thomas Jefferson 1787
    Quis custodiet ipsos custodes?
    NRA Life Member - Member GA Carry Organization

  9. #23
    sgb
    sgb is offline
    VIP Member Array sgb's Avatar
    Join Date
    Jan 2006
    Location
    Jacksonville, Florida
    Posts
    3,287
    Of the calibers you've listed as an additional upper to your current AR I'd have to go with the 6.8 ........ ammo is going to run you between $ .60 & 1.00 a round though.
    " It's easier to avoid conflict than it is to survive it, but if you have to play ..... play to WIN!!!"
    Best Choices for Self Defense Ammunition

  10. #24
    VIP Member Array Chuck808's Avatar
    Join Date
    May 2013
    Location
    Tampa Bay area, Florida
    Posts
    2,271
    5.56mm will get the job done. Id much rather have a 5.56mm AR than any of those other calibers. Especially if youre limited by budget the ONLY other option is 7.62x39, and with the options of quality 5.56mm or 7.62x39, why would you go with 7.62x39? 5.56mm is just a better round. Theres a reason that every country that uses AKs that isnt a third world dump has gone to the AK74 pattern guns and the higher velocity 5.45x39mm, because for intermediate rounds, a smaller, flatter shooting, higher velocity projectile does more damage. On top of that, has anyone ever seen a 7.62x39 AR that runs like a top? Having worked at a gun range for a year, I know that I certainly havent seen one that works well enough that Id ever rely on it for bedside duty.

    If you want to varmint, buy something like a 50gr ballistic tip bullet. If you wanted to hunt hogs, go with something like a heavy OTM or solid copper bullet.

    Just roll with 5.56mm. If you have to have something different for the sake of being different, so be it, but just know that youre giving something up to do so.

  11. #25
    VIP Member Array Struckat's Avatar
    Join Date
    Feb 2014
    Location
    Lurking
    Posts
    3,810
    I like the 6.8 and the AR platform makes it such a handy deer rifle. Low recoil and accurate, I liked the 6.8 so much I barreled a blot gun in it too.
    My hunting is all 200 yard or less, it’s perfect.
    Read our government's plan to destroy the Constitution.
    https://sustainabledevelopment.un.or...ormingourworld

  12. #26
    VIP Member Array MMinSC's Avatar
    Join Date
    Dec 2013
    Location
    charleston,sc
    Posts
    3,591
    Quote Originally Posted by Bad Bob View Post
    450 BM, go big or stay on the porch.
    Did you chose 450 BM because it was one of the OP's choices or because you like it best out of the three big bore AR calibers?
    It takes a Viking to raze a village.

  13. #27
    Senior Member Array M1911A1's Avatar
    Join Date
    Jan 2009
    Location
    Northwest Washington State
    Posts
    586
    The "prepper" who hides inside me says that one's rifle(s) and pistol(s) should use ammunition which is always readily available, keeping in mind that eventually, as civilization dies, you may have to loot some retail outlet to replenish your supply.

    Military ammunition, and its civilian counterparts, will always be the most likely to be available.
    Pete63 likes this.
    Steve
    Retired Leathersmith and Practical Shooter

    "Qui desiderat pacem, pręparet bellum."

  14. #28
    VIP Member Array Bad Bob's Avatar
    Join Date
    Feb 2012
    Location
    The BAD lands
    Posts
    12,138
    Quote Originally Posted by MMinSC View Post
    Did you chose 450 BM because it was one of the OP's choices or because you like it best out of the three big bore AR calibers?
    All the above. I had a 50 Beo, very hard on lowers. The 458 is a PITA because of the case plus the bullets are too slow to be optimized, IMHO. The 450 uses 45 ACP bullets and seems to hit HARD.
    Pete63 and MMinSC like this.
    A man has got to know his limitations.

    In a world of snowflakes, be a torch.

  15. #29
    VIP Member
    Array Pete63's Avatar
    Join Date
    Nov 2013
    Location
    Magnolia, Texas
    Posts
    3,488
    Granted, this is away from OP's needs/wants, but I thought I'd post this, after some of the comments. I too debated on AR/7.62X39. After checking into options, I went with the PSA KS-47 Gen II. I love this thing! I know it's long, but this guy IS THROUGH! (a NO-NONSENSE view on firearms review/information) Actually found this, after my purchase, & he justifies what I already knew. Jump to 24:25 to see his thoughts on the PSA.

    MMinSC likes this.
    NRA Benefactor Life Member
    Live Well, Laugh Often, Defend Yourself
    Nemo Me Impune Lacessit
    This land abounds in ruffians and varmints. Their numbers are legion, their evil skills commensurate.

  16. #30
    Distinguished Member Array ca survivor's Avatar
    Join Date
    Jun 2015
    Location
    Miami, Fl
    Posts
    1,767
    5.56X45mm

Page 2 of 3 FirstFirst 1 2 3 LastLast

Sponsored Links

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •