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Federal 5.56 MK318 MOD 0 Chrono Results From A 10.5'' SBR

Discussion in 'Caliber Corner' started by plouffedaddy, Aug 26, 2012.

  1. plouffedaddy

    plouffedaddy

    2,239
    1
    Apr 1, 2011
    Carolina
    [​IMG]
    I'm always searching for the best ammo for my SBR and most of the guys I work with either run one of 2 loads––-Speer Gold Dot 64gr (or the Fusion 62 version) or the MOD 0 load we're testing here today. Both loads are recommended by Dr. Roberts and are probably good choices for a rifle (SBR) that is already compromising muzzle velocity due to the short barrel.

    Here's the chrono test I ran to document the real world results:

    [ame]http://youtu.be/x4Sg7BW8pKo[/ame]

    Chrono data: 2617fps, 943 ft/lbs energy.
     
  2. chemcmndr

    chemcmndr

    829
    0
    Aug 23, 2008
    Beavercreek, OH
    I've chronographed some of the Mk 318 from a 11.5" and a 14.5" rifle.

    11.5" - 2687 fps

    14.5" - 2863 fps

    It did particularly well from the 14.5" upper, with an ES of 16 fps and SD of 7.89.
     


  3. ABNAK

    ABNAK

    729
    3
    Apr 22, 2005
    Tennessee
    I have a stash of Mk318 in my "primo" 5.56mm rainy day cubbyhole. That and SSA 70gr Barnes TSX 5.56mm as well as Mk262. All 5.56mm NATO pressure loads, no .223. That stuff doesn't get shot.
     
  4. Travclem

    Travclem Badass Member Lifetime Member

    6,775
    8
    Aug 4, 2008
    Lubbock, TX
    Very cool! I'd like to see the same test with MK262. I'll do it but my 10.5" SBR wont be in my hands until Jan-Feb.
     
  5. chemcmndr

    chemcmndr

    829
    0
    Aug 23, 2008
    Beavercreek, OH
    Well, that same day I did my tests with the MK 318, I did some Black Hills Mk 262 and here's what I got:

    11.5" AR - 2421 fps
    14.5" AR - 2577 fps
     
  6. ABNAK

    ABNAK

    729
    3
    Apr 22, 2005
    Tennessee
    That 14.5" velocity is a little disappointing. I was hoping for 2600-2700 (haven't chrono'd it myself).
     
  7. Travclem

    Travclem Badass Member Lifetime Member

    6,775
    8
    Aug 4, 2008
    Lubbock, TX
    Same here.