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Thread: 18 Inch AR Barrel Questions

  1. #21
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    Quote Originally Posted by Jammer Six View Post
    I don't need it to be simple, but I would like to try to understand it. Are you saying that .223, .223 Wylde and 5.56 are merely different names for the same caliber?
    Different chamber/leade cuts.
    "You people have too much time on your hands." - scottryan

  2. #22
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    Anybody know if there is anything special on the Mk12 5.56mm reamer/chamber/lead compared to a standard 5.56 NATO in say an M4/M16?

  3. #23
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    The 5.56 CLE Match has very short free bore and slightly steeper throat angle.

    Quote Originally Posted by pointblank4445 View Post
    Anybody know if there is anything special on the Mk12 5.56mm reamer/chamber/lead compared to a standard 5.56 NATO in say an M4/M16?
    Last edited by Clint; 10-30-18 at 12:20.
    Black River Tactical
    BRT OPTIMUM HFCL Barrels - Hammer Forged Chrome Lined 11.5", 12.5", 14.5"
    BRT OPTIMUM Barrels - 16" MPR, 14.5" MPC, 12.5" MRC, 11.5" CQB, 9" PDW
    BRT EZTUNE Preset Gas Tubes - CAR and MID
    BRT Covert Comps 7.62, 5.56, 6X, 9mm
    BRT MarkBlue Gas Tubes - BRT EXT, EXC and PDW Lengths
    BRT MicroPin Gas Blocks - .750" & .625"
    BRT MicroTUNE Adjustable Gas Blocks
    BRT CustomTUNE Gas Ports

  4. #24
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    Quote Originally Posted by markm View Post
    Your example of 1 is worthless. Why are you still posting on this site? You're an abrasive imbecile. I cited the reports from an instructor with the Sheriff's Office as to the unsuitability of (at least some) Wylde Chambers with 5.56 ammo... which mirrored my experience as well.
    There are thousands of 223 Wylde barrels being fed everything from NATO milsurp junk to borderline nuclear loads with 80 - 85 grain bullets without a problem. But we should believe you and your cop buddy that they don't work.

    OK

  5. #25
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    Quote Originally Posted by Clint View Post
    The 5.56 CLE has very short free bore and slightly steeper throat angle.
    Is the 5.56 CLE the same as "CLE match"?

  6. #26
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    Yes

    http://www.compasslake.com/index.php...age=page&id=21



    Quote Originally Posted by pointblank4445 View Post
    Is the 5.56 CLE the same as "CLE match"?
    Black River Tactical
    BRT OPTIMUM HFCL Barrels - Hammer Forged Chrome Lined 11.5", 12.5", 14.5"
    BRT OPTIMUM Barrels - 16" MPR, 14.5" MPC, 12.5" MRC, 11.5" CQB, 9" PDW
    BRT EZTUNE Preset Gas Tubes - CAR and MID
    BRT Covert Comps 7.62, 5.56, 6X, 9mm
    BRT MarkBlue Gas Tubes - BRT EXT, EXC and PDW Lengths
    BRT MicroPin Gas Blocks - .750" & .625"
    BRT MicroTUNE Adjustable Gas Blocks
    BRT CustomTUNE Gas Ports

  7. #27
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    And this is the chamber in the mk12?...that’s “optimal” for MK262?

  8. #28
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    Quote Originally Posted by Don Quijote View Post
    There are thousands of 223 Wylde barrels being fed everything from NATO milsurp junk to borderline nuclear loads with 80 - 85 grain bullets without a problem. But we should believe you and your cop buddy that they don't work.

    OK
    Your opinion may differ from others, but there are ways to discuss them without being abrasive. I suggest you read what ArmyChief had to say on the subject-
    https://www.m4carbine.net/showthread...4C-Style-Guide
    Last edited by MistWolf; 10-30-18 at 23:01.
    INSIDE PLAN OF BOX
    1. ROAD-RUNNER LIFTS GLASS OF WATER- PULLING UP MATCH
    2. MATCH SCRATCHES ON MATCH-BOX
    3. MATCH LIGHTS FUSE TO TNT
    4. BOOM!
    5. HA-HA!!

    -WILE E. COYOTE, AUTHOR OF "EVERYTHING I NEEDED TO KNOW IN LIFE, I LEARNED FROM GOLDBERG & MURPHY"

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  9. #29
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    Alright, let's settle down on the topic. First had knowledge and from reputable sources are important. The chamber, pressure and cartridge differences are all known. You may also have reamer inconsistencies and cartridge dimensions that are manufacturing issues. One can potentially see how problems may occur and at the same time expose weaknesses in "theory" pertaining to "compromises"

    In other words and my opinion, get a 5.56 chambered barrel. My 5R LMT MRP 5.56 has zero accuracy or functioning problems. I can speak of a named match barrel with a Wylde chamber that I loaded for and had to stay on the low end, it also showed problems with 262. It was accurate though but no more than my current LMT.
    GET IN YOUR BUBBLE!

  10. #30
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    Wow. I asked for barrel suggestions, not for a couple of guys high jacking the thread to argue about what I didn’t ask about. Thanks

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