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Thread: Criterion 223 Wylde barrels

  1. #21
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    Quote Originally Posted by DreadPirateMoyer View Post
    Figured I'd bump this thread instead of starting a new one. Does anyone have any further experience with these? In particular, does anyone have experience with the chrome-lined Criterion barrels from Brownells?

    I find them really tempting and am about to pull the trigger to take advantage of the 10% off deal this weekend, but I don't know if Criterion barrels are HPT/MPI, how accurate their chrome-lined barrels are, if they're gassed properly, etc. I absolutely love the idea of a 1/8 twist, 20" chrome-lined precision barrel, but want to know more.

    Anyone have any of the more technical details on these guys? Barrels in question: http://www.brownells.com/rifle-parts...prod54733.aspx
    Per Criterion customer service today, their chrome lined barrels are made out of either 4140 or 41450 depending on the material availability. These barrels are not HPT/ MPI tested. These barrels are stamp coded, so one could determine the barrel steel used in their barrel if one desired to call in the code and find out.

    Chrome-lined, button rifled barrels feature 223 Wylde chambers and 1-8" twist for enhanced accuracy potential with both .223 and 5.56 NATO ammunition. Unique chrome-lining process maintains uniformity throughout the bore and hand-lapping helps ensure smooth, consistent lands and grooves. Gas ports are optimized for barrel length and chambering to help ensure reliable cycling, and are available for carbine, mid-length, and rifle gas systems. Also features 1/2"-28 tpi muzzle threads for standard comps and flash hiders, plus M4 feed ramps on barrel extension to aid in smooth, reliable feeding, Hybrid contour barrels have a reduced and tapered contour under the handguard to save weight. HBAR contour barrels feature .870" diameter under the handguard for rigidity and extra heat absorption.

    Length – 16, 18, or 20 inch. Profile – Hybrid or HBAR (18” & 20” only). Gas system – Carbine or Mid-Length (16”). Rifle (18” & 20”). Chamber - 223 Wylde. Finish - Parkerized. Chrome lined. Construction - 4140/50 Chrome Moly Steel. Hand Lapped. Includes barrel extension with M4 feedramps. Dimensions - .750” OD at the gas port. 1.9” length at gas block. Threads – ½-28

    Chrome-lining will extend the life of your barrel and make it easier to clean. It is commonly thought that chrome-lining degrades the accuracy of the barrel. This is because during the chrome-lining process, material is chemically removed from the bore and then built back up with chrome, destroying the bore uniformity.
    *** At Criterion Barrels, Inc., our unique chrome-lining process maintains bore uniformity, providing you with the advantages of a chrome-lined barrel without sacrificing accuracy. ***
    Last edited by Biggy; 12-02-13 at 13:18.

  2. #22
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    Dang. Sucks to hear they're not HPT/MPI. I'm also not a fan of a coin's flip deciding what steel my barrel is. Good to know that info, thank you.

    And yeah, I saw the rest of that on their website. I guess the last question I have then is port size on the 20".

    Mehhh. I was really looking forward to using one of these barrels. Now I'm not. Blegh.

  3. #23
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    Some notes on HPT/MPI form an old thread. https://www.google.com/url?q=https:/...Gcy0jPODB9fH7Q

  4. #24
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    Quote Originally Posted by DreadPirateMoyer View Post
    Dang. Sucks to hear they're not HPT/MPI. I'm also not a fan of a coin's flip deciding what steel my barrel is. Good to know that info, thank you.

    And yeah, I saw the rest of that on their website. I guess the last question I have then is port size on the 20".

    Mehhh. I was really looking forward to using one of these barrels. Now I'm not. Blegh.
    You're worried you won't be certain which of two excellent barrel steels it'll be made of?

    HPT is not needed in a modern barrel. They've got steel refining & barrel making down to a science
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  5. #25
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    Quote Originally Posted by MistWolf View Post
    You're worried you won't be certain which of two excellent barrel steels it'll be made of?

    HPT is not needed in a modern barrel. They've got steel refining & barrel making down to a science
    HPT may not be, and I actually don't even support the practice anymore, but MPI still is valuable to me regardless of how good the steel is. And yes, I'm worried that I won't know ahead of time which steel I'm getting. I know what I want in my rifle, and it's not a coin flip on 4140 or 4150 regardless of their minor or perceived differences. It's especially disconcerting since not all 4140s are the same, and not all 4150s are the same, and it's not even known which of them they use when they do use one or the other. Too many unknown variables for me here.

    All that's left is gas port size, though I'd bet it's 0.093 since their lineage is traced from Krieger and that's what Krieger uses.
    Last edited by DreadPirateMoyer; 12-03-13 at 23:57.

  6. #26
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    Welp, went with a Criterion 20" HBAR barrel anyway despite my misgivings due to a great deal I got on a new one.

    As a base of comparison, do any precision barrel companies HPT/MPI their barrels? Looking around, I don't really see it advertised on anyone's websites, and I feel like that would be a selling point. Maybe Criterion isn't alone in this regard?
    Last edited by DreadPirateMoyer; 12-04-13 at 00:01.

  7. #27
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    Quote Originally Posted by DreadPirateMoyer View Post
    Welp, went with a Criterion 20" HBAR barrel anyway despite my misgivings due to a great deal I got on a new one.

    As a base of comparison, do any precision barrel companies HPT/MPI their barrels? Looking around, I don't really see it advertised on anyone's websites, and I feel like that would be a selling point. Maybe Criterion isn't alone in this regard?
    Now that you mention it, it seems to be a bigger selling point on carbine barrels. Outside of BCM and Noveske (I think), I can't recall anyone else that specs it for precision barrels.

  8. #28
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    Ranier Select barrel is marked "MPI"

  9. #29
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    Quote Originally Posted by mpom View Post
    Ranier Select barrel is marked "MPI"
    Interesting and good to know! These are the barrels made by Black Hole, correct?

    Any other big precision-barrel makers that HPT/MPI their barrels? Heck, even within Rainier, it seems only the Select-series barrels are tested in any way, and the others are left alone (Match, Ultramatch).

    Just seems like it's more common to not test precision barrels than otherwise. Makes me feel better about the Criterion purchase.

  10. #30
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    Ranier and BH are not telling, but I suspect they are made by BH.
    No doubt the Criterion is a great choice. Lapped bore and chrome lined for long life. What's not to like?
    Would have gone with Criterion but Select finally came into stock, and for me, was significantly cheaper than Criterion. Select MedCon was also a little lighter in 16".
    Have read nothing but good things on the Net about Criterion, which means its likely very good, as folks tend to really bitch if there are real problems!

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