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Thread: WTK: 300 BO Build

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  1. #1
    Join Date
    Feb 2019
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    WTK: 300 BO Build

    I am planning on doing a 300 BO build this summer. I want a barrel that is at least 10.5". I haven't decided on SS or not. I do prefer heavy short barrels. I will be mounting this new build on a Colt Commando, Model 6933 and occasionally on a Colt M16. I will also be mounting an OSS 762 Ti Suppressor on it.

    Looking at some barrels options I see two twist rates, 1/7 & 1/8. I also see some barrels with 5R Rifling.

    Any suggestions on the twist rate and Barrel Manufacturer?

  2. #2
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    Well if you are going to shoot really heavy subs, or barnes bullets , I would go with the 1:7.

    Both of mine are 1:7, and shoots heavy subs and supers just fine.

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  3. #3
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    1:7 gives you good results with heavier bullets. 1:8 is fine if you’re going to stick with lighter supersonic ammo, but why limit yourself?

    I have built quite a few and always use 1:7.

  4. #4
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    Thank You for the input!

  5. #5
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    You aremost welcome. Just be sure tp post up some pictures on the project one done.

    Oh, as a point of interest, I think the SIG Rattler is a 1:5 twist.

  6. #6
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    I do not have a lot of experience in .300 Blackout. I have only one, my HD SBR. That said, I chose the 11.3" Wilson Combat barrel, and have not been disappointed. It's shoots very well, and very accurately.
    You know what I like best about most people?

    Their dogs.

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