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Thread: noob first AR

  1. #1
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    noob first AR

    my question is after all the research that i have done i settled on a DDM4. then the other day a came accross some reviews that people where having problems with fte's using AE or pmc 223 rounds. is this just related to a "break in period" or is it just dd does not like low quality ammo?

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    Daniel Defense drills smaller gas ports in their rifles. Combine that with low pressure .223 rounds and one may have issues. PMC is known to be underpowered as well. The DDM4 is a great rifle and will function perfectly with 5.56 loads and, assuming proper buffer setup, most .223 loads as well.
    Last edited by Eric D.; 02-10-12 at 14:24.
    B.A.S. Mechanical Engineering Technology

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    thanks for your reply Eric

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    My DDM4V2 LW has gone through 500 or so PMC Bronze .223 without a FTF or FTE. It was the second type of ammunition I put into it after firing 60 rounds of Federal 5.56 to zero it.

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    I have a DDM4 V3 and i have put a ton of AE 223 with out any problems at all. Have faith in your DD, it is a great gun

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    I don't think there is a break in period with DDs
    Unlike Spandex, Liberty is a Right NOT a Privilege.

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    Quote Originally Posted by porider View Post
    I don't think there is a break in period with DDs
    I don't think there's a break in period for any AR-15 platform rifle. Unless, of course, you're talking about the period it takes to break something in a lower tier rifle, then I would say yes there is a "break in" period.
    Designing the legacy systems of tomorrow!

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    Quote Originally Posted by C2_Drew View Post
    I don't think there's a break in period for any AR-15 platform rifle. Unless, of course, you're talking about the period it takes to break something in a lower tier rifle, then I would say yes there is a "break in" period.
    Wait, that's the break-off period your talking about
    OP, it might have been the lot of ammo you got. Do you have a chrono. Do you have a few XM193, IMI or PPU you can pop off to see if you get the same results?
    Unlike Spandex, Liberty is a Right NOT a Privilege.

  9. #9
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    Quote Originally Posted by C2_Drew View Post
    I don't think there's a break in period for any AR-15 platform rifle. Unless, of course, you're talking about the period it takes to break something in a lower tier rifle, then I would say yes there is a "break in" period.
    The 'break-in' period that the original poster is questioning is the time it takes for a rifle with a smaller gas port to work with lower power cartridges. I've had a 20'' and 14.5'' midlength BCM that would not shoot TulAmmo/Wolf 55gr until a couple hundred rounds through it with full power 5.56 ammo.

    But this isn't to say that it happens with every rifle/carbine.



    Quote Originally Posted by overcome View Post
    is this just related to a "break in period" or is it just dd does not like low quality ammo?
    See above. It isn't low quality that most likely is the issue its the lower power of the .223 ammo - the gun after all is made to shoot 5.56.
    Last edited by mini4m3; 02-10-12 at 20:16.

  10. #10
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    My first AR was a LEO 6920 which I used as a base to build on. If I could have afforded it then perhaps a Noveske or LaRue. Lots of good stuff out there as well as bad. You have to keep your eyes peeled though since some manufactures ride on their reputation letting quality slide in the end. Others have solid reps that are always good to go.

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