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Thread: BCM barrel length inconsistencies

  1. #31
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    Quote Originally Posted by Iraqgunz View Post
    Someone please explain rationally and coherently why this issue is a big deal? If the barrels were undersized I get that because you could be in violation of state and federal law.

    That isn't the case here so I have to ask why is it a big deal? Those of us who have BCM barrel and uppers can testify to the fact that they are some of the best available on the market.
    I would say that when buying parts like this you should expect to get what you pay for and what the item is listed as. If it isn't a 14.5" barrel they should state so. This would not be tolerated with other manufacturers on here, not sure why BCM gets a pass.

  2. #32
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    Quote Originally Posted by skywalkrNCSU View Post
    I would say that when buying parts like this you should expect to get what you pay for and what the item is listed as. If it isn't a 14.5" barrel they should state so. This would not be tolerated with other manufacturers on here, not sure why BCM gets a pass.
    Exactly my thoughts and why I hesitated to even post this here.

  3. #33
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    Quote Originally Posted by BufordTJustice View Post
    ...In all seriousness, what happened if Colt's 16" barrels were actually 16.1"? Or if 20" barrels measured 20.2" (I've seen this multiple times on Colt 20" rifles)? Or if an 11.5" Noveske barrel was ACTUALLY 11.6"? *GASP*

    If exact barrel length bothers somebody, they shouldn't even waste their time measuring custom barrels...
    Just wait till people discover that rifling isn't exactly as advertised and that on button rifled and cut rifled barrels, twist can vary up to a half inch either way from barrel to barrel.

    The biggest concern about the extra half inch is whether or not the chamber is deep enough to support the case head. If that extra half inch is to headspace a short chamber, there is a problem. I don't know if this kind of mistake is even possible. IG, would you like to take this question?

    If a buyer gets a barrel that's a little long, it's easy to have it re-crowned for better accuracy
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  4. #34
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    Quote Originally Posted by MistWolf View Post
    The biggest concern about the extra half inch is whether or not the chamber is deep enough to support the case head.
    How did you arrive at this conclusion? Not saying it's baseless, just genuinely curious.
    Last edited by Safetyhit; 04-28-13 at 20:53.

  5. #35
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    There should not be a 1/2" of variation in length on the same model of barrel.

    Justify all you want but there is a problem here.
    Last edited by scottryan; 04-28-13 at 20:52.
    "Not every thing on Earth requires an aftermarket upgrade." demigod/markm

  6. #36
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    Quote Originally Posted by Iraqgunz View Post
    Someone please explain rationally and coherently why this issue is a big deal? If the barrels were undersized I get that because you could be in violation of state and federal law.

    That isn't the case here so I have to ask why is it a big deal? Those of us who have BCM barrel and uppers can testify to the fact that they are some of the best available on the market.

    Don't you buy their products because you know they are made from the finest materials almost always made perfectly to spec, and because they generally strive for perfection? If so, why the free pass here?
    Last edited by Safetyhit; 04-28-13 at 20:59.

  7. #37
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    I always wondered why companies didn't make 15'' mid barrels. This way, if pinning a muzzle device you can use a regular length device and be in OAL compliance.

    Whenever I look at a 14.5'' and see the 1.5'' FH, I have flashbacks of those 11.5'' booshmasters with the 5.5'' long FH.

  8. #38
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    Quote Originally Posted by Traveshamockery View Post
    Work on your reading comprehension. It's a half-inch off, not a tenth or two-tenths off.

    If you'd read half as much as you've posted here on M4C, you'd know that everything from gas port size and buffer selection to calculating ballistics and zeroing a rifle includes assumptions about a barrel's actual length.

    Congratulations on this not mattering to you. It apparently matters to the OP. I'm sure you enjoyed your little spiel above, but some people here would like to have a useful conversation free of folks who prefer to ridicule someone's discovery instead of contributing something useful.
    Quite sure Buford T knows his sh#t.

    Buckjay has discovered the same thing I did and unfortunately his thread is going off the deep end as well.

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  9. #39
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    Quote Originally Posted by P2000 View Post
    I always wondered why companies didn't make 15'' mid barrels. This way, if pinning a muzzle device you can use a regular length device and be in OAL compliance.

    Whenever I look at a 14.5'' and see the 1.5'' FH, I have flashbacks of those 11.5'' booshmasters with the 5.5'' long FH.
    .......and THIS is why I was quite pleased with what I discovered.

    -Jax
    Last edited by jaxman7; 04-28-13 at 21:06.


    "Despite what your mamma told you, violence does solve problems."
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    Quote Originally Posted by Army Chief View Post
    "Elite" designations come from the things that you DO in life, and not from the things that you buy along the way. AC

  10. #40
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    Quote Originally Posted by Traveshamockery View Post
    Work on your reading comprehension. It's a half-inch off, not a tenth or two-tenths off.

    If you'd read half as much as you've posted here on M4C, you'd know that everything from gas port size and buffer selection to calculating ballistics and zeroing a rifle includes assumptions about a barrel's actual length.

    Congratulations on this not mattering to you. It apparently matters to the OP. I'm sure you enjoyed your little spiel above, but some people here would like to have a useful conversation free of folks who prefer to ridicule someone's discovery instead of contributing something useful.
    If you've read half of my posts, you'd realize that I've probably shitted-out more knowledge about buffers, gas port sizes, gas systems, enhanced carriers, etc. than you currently know on the topic. So have a lot of other people.

    And we've all said the same thing: IN THE REAL WORLD IT DOESN'T MATTER, but the OP can send it back to BCM if they like.

    Also, reference to the bolded part of your response: I'm a street deputy who will also be attending law school for my JD this fall. I think that you would be wise to not call into question my reading comprehension abilities. How about you read the first 5 posts talking about 2/10"?

    Check yourself.
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