Home Main Category General Firearms

What AR15 chamberings are compatible with the standard bolt face gas system and mags?

BigDanSBigDanS Senior MemberPosts: 6,992 Senior Member
So I am considering alternative uppers, and for simplicity sakes I want to stay with the same magazine, bolt / gas system. Basically I want to swap uppers and be done.

I know the following are the same:

5.56 / .223
6x45
300 aac

What else?

Thank you in advance.

D
"A patriot is mocked, scorned and hated; yet when his cause succeeds, all men will join him, for then it costs nothing to be a patriot." Mark Twain
Alcohol, Tobacco, Firearms and Explosives.... now who's bringing the hot wings? :jester:

Replies

  • justin10mmjustin10mm Senior Member Posts: 688 Senior Member
    17 remington
    204 ruger
  • JasonMPDJasonMPD Senior Member Posts: 6,577 Senior Member
    .222Rem (seen an AR for this, believe it or not)

    6.5x45 (6.5/.223) also fits.
    “There are three kinds of men. The one that learns by reading. The few who learn by observation. The rest of them have to pee on the electric fence for themselves.” – Will Rogers
  • BigDanSBigDanS Senior Member Posts: 6,992 Senior Member
    So if you got a modified bolt with an upper, do other cases use the standard ar 15 magazines?
    "A patriot is mocked, scorned and hated; yet when his cause succeeds, all men will join him, for then it costs nothing to be a patriot." Mark Twain
    Alcohol, Tobacco, Firearms and Explosives.... now who's bringing the hot wings? :jester:
  • JasonMPDJasonMPD Senior Member Posts: 6,577 Senior Member
    .50 Beowulf does, as I understand it. 6.8SPC does NOT use 5.56 mags and 6.5 Grendel uses 5.56 mags, I think.
    “There are three kinds of men. The one that learns by reading. The few who learn by observation. The rest of them have to pee on the electric fence for themselves.” – Will Rogers
  • BigDanSBigDanS Senior Member Posts: 6,992 Senior Member
    I am liking what I read about the .458 socom...

    D
    "A patriot is mocked, scorned and hated; yet when his cause succeeds, all men will join him, for then it costs nothing to be a patriot." Mark Twain
    Alcohol, Tobacco, Firearms and Explosives.... now who's bringing the hot wings? :jester:
  • JasonMPDJasonMPD Senior Member Posts: 6,577 Senior Member
    BigDanS wrote: »
    I am liking what I read about the .458 socom...

    D

    Also uses AR mags.

    I think it is superior to .50Beowulf...mostly because AA didn't develop it.

    If you want an AR to be a .45-70 then .458 SOCOM is your huckleberry. Great pig caliber for sure. And WAAAAAY better bullet selection. Everything from Hornady softpoints to hydro-statically stabilized Woodleigh solids...mucho fun.
    “There are three kinds of men. The one that learns by reading. The few who learn by observation. The rest of them have to pee on the electric fence for themselves.” – Will Rogers
  • JayhawkerJayhawker Moderator Posts: 18,118 Senior Member
    .17 Rem....and anything that uses a .223 case as a parent
    Sharps Model 1874 - "The rifle that made the west safe for Winchester"
  • JasonMPDJasonMPD Senior Member Posts: 6,577 Senior Member
    cpj wrote: »
    I thought the Beowulf was 7.62x39 sized?

    The mags, not the bolt face.
    “There are three kinds of men. The one that learns by reading. The few who learn by observation. The rest of them have to pee on the electric fence for themselves.” – Will Rogers
  • jbp-ohiojbp-ohio Senior Member Posts: 10,664 Senior Member
    Both the Wulf and SOCOM have a larger diameter rim than the 5.56.......
    "The democracy will cease to exist when you take away from those who are willing to work and give to those who would not." Thomas Jefferson
  • timctimc Senior Member Posts: 6,684 Senior Member
    Beowulf will single stack in a standard 5.56 mag and will shoot reliably but if you don't trim the feed lips a little it will scar the brass.
    timc - formerly known as timc on the last G&A forum and timc on the G&A forum before that and the G&A forum before that.....
    AKA: Former Founding Member
  • jbp-ohiojbp-ohio Senior Member Posts: 10,664 Senior Member
    cpj wrote: »
    I thought the Beowulf was 7.62x39 sized?


    See, I wasn't the only one who thought they were talking about both........
    "The democracy will cease to exist when you take away from those who are willing to work and give to those who would not." Thomas Jefferson
  • jbp-ohiojbp-ohio Senior Member Posts: 10,664 Senior Member
    knitepoet wrote: »
    :uhm:
    quoted in my first post to this thread
    Not to mention SIX uses of the word mag or mags

    Edited because I missed one

    Ever think for a second no one was talking about your post or even read your post? When using Tapatalk posts sometimes don't show up, or I just miss them. Many times I will reply to a post (that is the last in a thread), and when I refresh Tapatalk, there will be multiple replies between my reply and the post I was replying too..

    I read Jason say the Wulf does fit, and Dan say he's liking the SOCOM. Last thing I saw was CPJ's post when I replied, so I just said they won't use the same bolt which was the the original question.

    You may now reach down and pull your panties out of your crack.
    "The democracy will cease to exist when you take away from those who are willing to work and give to those who would not." Thomas Jefferson
  • 41magnut41magnut Senior Member Posts: 1,258 Senior Member
    I am not sure about the bolt face dimensions, but this round seems interesting.

    http://www.rifleshootermag.com/2011/01/04/ammunition_rs_30remingtonar_200904/

    OK, read the full article and it has a different bolt face, a modified ar-10 bolt carrier. But an interesting round none the less.
    Seems like this would be a more useful round than the 300 Blackout.

    I am willing to bet ammo would be just short of none existent.
    "The .30-06 is never a mistake." Townsend Whelen :iwo:
Sign In or Register to comment.
Magazine Cover

GET THE MAGAZINE Subscribe & Save

Temporary Price Reduction

SUBSCRIBE NOW

Give a Gift   |   Subscriber Services

PREVIEW THIS MONTH'S ISSUE

GET THE NEWSLETTER Join the List and Never Miss a Thing.

Get the top Guns & Ammo stories delivered right to your inbox every week.

Advertisement