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Thread: 5.45x39 SBR questions

  1. #1
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    5.45x39 SBR questions

    I was considering to cut down my 16in 5.45x 39 to 12.5. or buy a barrel. I was told that 5.45 x 39 SBR do not function well and terribly inaccurate. does any one have one. Thanks

  2. #2
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    While I can't answer in relation to an AR platform I can tell you that a 12.5" 5.45x39 out of an AK platform is just as accurate as a 16" gun in my limited experience. I had one built years ago and have had no issues with either function or accuracy.

    Back when 5.45 was dirt cheap I could see the interest, but with prices the way they are now I don't see much reason for a 5.45 AR.

  3. #3
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    Ballistic Advantage 10.5" barrel... zeroed at 50 yds can hold about a 2" group using Wolf. Should probably break out some better ammo 1 day just to see...

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    Long range, effective accuracy from a pistol. 6.5 Grendel

    http://www.alexanderarms.com/images/6.5Pistol.pdf

  5. #5
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    Quote Originally Posted by Smokin338 View Post
    Ballistic Advantage 10.5" barrel... zeroed at 50 yds can hold about a 2" group using Wolf. Should probably break out some better ammo 1 day just to see...
    I spent years trying to get one of their bolts and a barrel. It’s like one day they stopped making them.

    This round is awesome in my SAR-2,
    But keyholes in my AR.
    “Where weapons may not be carried, it is well to carry weapons.”

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    What?? I buy BA several times a year.

    https://ballisticadvantage.com/

  7. #7
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    i have an older spike tactical 16in upper which i was planing to cut. I have a spare barrel that i can always can go back to 16

  8. #8
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    Back in the day I cut down a 16" S&W barrel down to 11.5". Mainly as a cheap trainer. Its been through numerous cans of 5.45 and even through a Pat Rogers carbine school with NO issues. As mentioned based on the ammo sometimes it will keyhole but that has nothing at all to do with the barrel length. Still running strong and if I know I will not have to engage steel targets I use it to burn through the once cheap ammo I still have on hand.

    Been running mine since the beginning with C-Products mags.

  9. #9
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    Quote Originally Posted by JohnXDm View Post
    What?? I buy BA several times a year.

    https://ballisticadvantage.com/
    When is the last time you bought a 5.45 barrel, let alone bolt from them?
    “Where weapons may not be carried, it is well to carry weapons.”

  10. #10
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    Quote Originally Posted by JohnXDm View Post
    Long range, effective accuracy from a pistol. 6.5 Grendel

    http://www.alexanderarms.com/images/6.5Pistol.pdf
    Sorry, I responded to my own post. You're right, I haven't seen any 5.45's

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