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Thread: Daniel Defense Lightweight?

  1. #11
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    Quote Originally Posted by polymorpheous View Post
    Lightweight barrels will heat up faster, but they also will cool faster.
    Groups will open up as the barrel heats up faster than a standard profile barrel will.

    A good question to ask is what your intended use for the rifle is.
    My intended use is three gunning and range time. I do not carry the weapon for any form of work but want something built to last. I want to get about a 30k round count out of the rifle. I know that the entire Vietnam war was fought with A1 pencil barrels so that inspires some confidence.

    I just think we are getting back to opinions again, IE the possibility of suppressor issues. I would like to see some viable evidence that it is could have issues the heavy does not have. And correct me if I am wrong but isn't the heavy barrel necked down after the receiver to a pencil diameter and the increases back to heavy after the gas block?

    Anyone had any warping issues due to heat? Anyone with a high round count like 9 or 10k?

    I am pretty set on the light weight as I can't imagine Daniels Defense would put their name on something that would fail so easily. I just want to see a post from someone that has had an actual failure. Not trying to argue just discussing.

  2. #12
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    Quote Originally Posted by Aaron_B View Post
    I still pull fist sized groups at 100yds from at Colt 6720 after the barrel is nice and warm from several hours of shooting. Never had any issues occur, at anytime yet. YMMV

    The only issues that I have heard of is when putting a suppressor on a light weight barrel.
    How would that create an issue? I am assuming accuracy would be affected when it gets real hot as the barrel would flex due to the extra weight on the end?

    Anyone ever experienced this?

  3. #13
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    Quote Originally Posted by SteveL View Post
    I don't recall reading any reports of a pencil barrel from a reputable manufacturer failing, and even the idea that it's "inferior" is debated.
    He may be referring to the test where the M4 SOCOM barrel kept shooting on long after the standard profile barrel shut down.

    There's no roll, for me, that a light weight/Pencil barrel fills.
    "You people have too much time on your hands." - scottryan

  4. #14
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    Quote Originally Posted by Seagunner View Post
    Veterans Day and you boys are arguing barrel failure.. Its almost funny....weight difference from the truck to the range between a pencil and gov profile..just buy a mil spec barrel and call it a day
    Actually the military is starting to adopt the pencil barrel back in some of their rifles. So the lightweight barrel is to be considered milspec? Correct me if I am wrong but milspec is the minimum qualifications a rifle can be built to and more pertaining to parts sizing than anything. I asked a rep at Daniels Defense why they do not use any magpul or tango down accessories IE grips etc on their rifles and was told they keep them milspec due to their gov contracts.

  5. #15
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    Quote Originally Posted by markm View Post
    He may be referring to the test where the M4 SOCOM barrel kept shooting on long after the standard profile barrel shut down.

    There's no roll, for me, that a light weight/Pencil barrel fills.
    Well sort of, I just want to see where someone had one fail, warp, bend etc etc. All I can find are opinions which I like to see but would like to see some actual failure information but can't find any.

    Speaking of opinions why no pencil barrels for you?

  6. #16
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    Quote Originally Posted by markm View Post
    He may be referring to the test where the M4 SOCOM barrel kept shooting on long after the standard profile barrel shut down.

    There's no roll, for me, that a light weight/Pencil barrel fills.
    That test involved modifiying an M4 to shoot automatic and shooting magazines after magazine through it as quickly as possible.

    At least for me, that type of situation has as much chance as happening as the zombie appocalypse.

  7. #17
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    Quote Originally Posted by Texas42 View Post
    That test involved modifiying an M4 to shoot automatic and shooting magazines after magazine through it as quickly as possible.

    At least for me, that type of situation has as much chance as happening as the zombie appocalypse.
    That's funny and I agree. Do you have a link to the test you are referring to? What barrels were used?

  8. #18
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    Quote Originally Posted by jerhelo View Post
    Speaking of opinions why no pencil barrels for you?
    They make no sense for me....

    I look at the barrel like this... The farther the target, the slower the rate of fire, and the heavier the barrel the better for making those shots.

    The CLOSER the target, the higher the rate of fire, and the heavier the barrel (to a point of diminishing returns), the more heat it can absorb. Hot chambers/barrels were cited as the cause of Malfs in the development of the Mk262 round. Higher chamber pressures from a round sitting in the gun during the pause in heavy firefight caused failures to extract.
    "You people have too much time on your hands." - scottryan

  9. #19
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    can't find the original, but this is part of it Utube

    http://www.youtube.com/watch?v=Kzfm4pYhIyY

    It compared a standart M4 profile to a heavy profile barrel. This is the second, heavy barrel (SOCOM?). I can't find the first.

    Found it

    http://atwar.blogs.nytimes.com/2010/...and-m4a1-guns/
    Last edited by Texas42; 11-12-12 at 09:00.

  10. #20
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    Quote Originally Posted by Texas42 View Post
    can't find the original, but this is part of it Utube

    http://www.youtube.com/watch?v=Kzfm4pYhIyY

    It compared a standart M4 profile to a heavy profile barrel. This is the second, heavy barrel (SOCOM?). I can't find the first.

    Found it

    http://atwar.blogs.nytimes.com/2010/...and-m4a1-guns/

    CRAZY. I think I'll be fine with the lightweight or heavy. That is abou as many rounds I will shoot in a year. LOL

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