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Thread: Chrome Lined VS Not

  1. #11
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    Quote Originally Posted by HansTheHobbit View Post
    The non chrome lined barrel has more accuracy potential, with a heavy emphasis on the word potential. BUT, in the real world, with non match grade ammo, you're probably not going to notice a difference between the two. And I'm guessing the barrel on the expanse is probably just in general not a high a quality as the one in their mil-spec offerings. JMHO, I don't know for sure. They may very well be the exact same barrels, with the expanse just not being chrome lined, in which case it would probably have a slight edge.

    I would definitely go with the OEM1 if it were me. I wouldn't touch that expanse thing. The savings aren't worth the lack of features. Non chrome lined barrels are for stainless precision rifles. All CMV barrels should be either nitrided or chrome lined. It's the difference between a 10k and 20k round service life, not to mention that corrosion is an issue. I had an untreated "in the white" CMV barrel on my Kimber and I couldn't keep that POS from rusting. No matter how much oil I put on it it would rust. Everytime I cleaned it I would have to scrub off rust with hoppes and steel wool. Never again.
    Truer words have never been spoken! Chrome > nitride > untreated/unlined.
    11C2P '83-'87
    Airborne Infantry

  2. #12
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    Quote Originally Posted by ABNAK View Post
    Truer words have never been spoken! Chrome > nitride > untreated/unlined.
    I'm not so sure about that. Some of the stuff I've read suggests that nitride may give a longer service life, and it doesn't degrade accuracy. It also has extremely good corrosion resistance. My only reservation about it is that I don't know how it affects the reliability of extraction from high pressure chambers. Chrome lined chambers have a certain lubricity to them, and I don't think nitride has nearly the same lubricity as hard chrome, so that may be an issue. Obviously it's good to go in low pressure chambers like Glock pistols, but I've not heard anything about how it performs with rifle chambers. I've actually wondered if it would be possible to take a nitrided barrel and have just the chamber chrome lined to get the best of both worlds. I just don't know if the chrome would stick to the nitrided surface of the chamber, but I have no reason to believe it wouldn't.

  3. #13
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    I'm still waiting to see a good test of a nitrided barrel that outperforms Molon's tests of the Colt 16" HBAR and 14.5" SOCOM barrels. Hell, they both outperformed the Noveske Recon barrel if I recall correctly.

  4. #14
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    Quote Originally Posted by TF82 View Post
    I'm still waiting to see a good test of a nitrided barrel that outperforms Molon's tests of the Colt 16" HBAR and 14.5" SOCOM barrels. Hell, they both outperformed the Noveske Recon barrel if I recall correctly.
    Are we talking accuracy or barrel life? If we're talking barrel life, then that's no surprise. Stainless barrels have a service life of 10k rounds or less, depending on how fast you shoot. If we're talking accuracy, I guess that wouldn't really surprise me either. I looked into Noveske when I was doing my recce build, and I was not impressed with the reviews I was seeing. I read and watched everything I could find, and everyone was kind of disappointed with theirs. It's always been a mystery to me where Noveske got their reputation for supreme accuracy.

  5. #15
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    The point people are making is that the chrome has better longevity, especially at high rates of fire. When your Cr lined barrels is 1moa, the only reason I could see justifying a nitride barrel over it is cost. It's a compromise.

    Then again, if the cost of a good barrel is holding you back, you likely don't need to worry about rates of fire.

  6. #16
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    Quote Originally Posted by MegademiC View Post
    The point people are making is that the chrome has better longevity, especially at high rates of fire. When your Cr lined barrels is 1moa, the only reason I could see justifying a nitride barrel over it is cost. It's a compromise.

    Then again, if the cost of a good barrel is holding you back, you likely don't need to worry about rates of fire.
    I'm a little dubious that there's any chrome lined barrel that consistently shoots 1 MOA, and I'm a lot dubious that it's a regular occurrence.

  7. #17
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    Last edited by MistWolf; 02-06-17 at 01:46.
    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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  8. #18
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    Quote Originally Posted by HansTheHobbit View Post
    I'm a little dubious that there's any chrome lined barrel that consistently shoots 1 MOA, and I'm a lot dubious that it's a regular occurrence.
    Reports of chrome plated barrels being inaccurate are greatly exaggerated.

    Buy a high-quality chrome plated barrel (Colt, FN, Noveske, Bravo, etc), you will probably get a barrel that is capable of holding 1 MOA or better with the right ammunition and other parts of the rifle.

  9. #19
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    My personal feelings on the subject are this-

    Only going to own one or maybe at most two rifles/carbines? Then go with 4150CMV chrome lined. Why? Because it is the standard by which all other options are judged. Proven track record over decades of military use/abuse.

    That said, for ME, I seek out non chrome lined 4150CMV. Why? Because I take care of my stuff (not worried about corrosion). Don't bump fire or own full auto (not worried about throat erosion). Don't shoot crap ammunition (between that and cleaning I don't worry about extraction). I prefer the increased accuracy POTENTIAL of non lined barrels. As for the post about corrosion/rust in non chrome lined 4150CMV, I have never seen that in weapons that are taken care of. I own several Mosin Nagants. I shoot old Russian surplus that most certainly leaves corrosive residue in the chamber/bore after firing. I clean them correctly and have never had an issue. They are not chrome lined and who knows what steel the barrels are made of.

  10. #20
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    Quote Originally Posted by MistWolf View Post
    Something tells me those were actually 3 shot groups...

    Seriously, people dream of groups that small, and they're using 700 dollar stainless barrels with handloads. There's a big difference between smallest group ever and consistent group size. If you cherry pick which groups you want to publish, then yea, getting sub .5 MOA out of a chrome lined barrel is possible. But I would bet money that it's not consistent, or even repeatable.

    This reminds me of a recent article in shotgun news where they claimed to get .5 MOA out of a SCAR 16 with factory ammunition. .5 MOA out of a piston gun with a pencil chrome lined barrel? I almost fell off the toilet I was laughing so hard.

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