AR-10 barrel length

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    Ifdot

    Ifdot

    Ultimate Member
    Mar 4, 2013
    1,298
    Md Eastern Shore
    Getting ready to start aquiring the parts to finish off my PSA AR-10 lower I've built. I am wanting to do a precision build and plan to run it with a dedicated supressor. Do I go with an 18" or 20"? I would say 20" but with a supressor on it I feel like it would be way too long. I MIGHT use it to hunt with but that's a big might.
     
    friendlyhippo

    friendlyhippo

    Banned
    BANNED!!!
    May 7, 2015
    592
    Glen Burnout
    On average, .308 tends to lose around 50fps per inch of barrel loss.

    If you're going to run it with a can, why not just go with a 16" barrel? Not a massive loss of velocity, and it'll be even more handy than the 18+" option.
     
    outrider58

    outrider58

    Eats Bacon Raw
    MDS Supporter
    Jul 29, 2014
    50,027
    Not knowing a lot about AR 10s I would agree with hippo. I'm about to begin a deer hunting AR in 300 AAC. It will be suppressed and have a 10.5-11.5" barrel. I realize its apples and oranges but when it comes to wielding a rifle in tight spaces(treestand and such), less is more.
     
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