6mm barrel twist rate advice

Discussion in 'Rifles, Bullets, Barrels & Ballistics' started by Guinness, Aug 26, 2018.

  1. Guinness

    Guinness Well-Known Member

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    So, I’m interested in a new rifle mostly for range shooting, etc. and I’ve been seriously considering the Patriot Valley Arms “John Hancock” edition in 6mm Creedmoor. The standard build spec calls for a 1:8” rate of twist and I’m waffling a bunch about whether its quick enough to shoot the 105-110 class bullets? They do offer a 1:7.5” but the rifle is no longer the special edition (not that its a deal breaker), it’s an upcharge and I’d like to be frugal within reason.

    I’m relatively well-versed in twist rate considerations so maybe what I’m really interested in is a “what would you do?” type of poll and/or personal experience with your thoughts if you’re willing to provide them. What say you? Thanks!

    G
     
  2. Sureshotnc

    Sureshotnc Member

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    When Hornady develop the round they recommend a 1:7.5 twist for that round. I have a Ruger with a 1:7.7 twist and shoot 107 with no problems. If you want to shoot the 110 grain Sierra, then I would recommend you not go any slower than 7.5 .
     
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  3. elkaholic

    elkaholic Well-Known Member

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    +1 on 7.5
     
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  4. adam32

    adam32 Well-Known Member

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    I've shot the 115gr D-Tac in a 1/8 just fine. The 1/8 is PERFECT for a 105gr Berger and at Creed velocities the 110gr won't gain you anything over the 105gr anyway.
     
  5. J E Custom

    J E Custom Well-Known Member

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    I would recommend a 1 in 8 twist for a wide range of bullet weights.

    1 in 8 is more than enough to handle the heavies and would not be as hard on the bullet jackets.

    Just my opinion

    J E CUSTOM
     
  6. LTH181818

    LTH181818 Member

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    I just built Piecre TI 6mm/284 with a Kieger 1:8".(coues deer).The 105 HYB shot .4's, 115's shot better then .3's. The problem was at 800 yards they would start tumbling. I took the barrel off after 48 rounds, very much wanted to use 115's. I wished I started with the 1:7.5".
     
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  7. LTH181818

    LTH181818 Member

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    Sorry, the 115's would tumble @ 800.