BR with 7 1/2 twist

Discussion in '6BR, 6BR Improved & Wildcats' started by Mark deluia, Feb 4, 2018.

  1. Mark deluia

    Mark deluia Gold $$ Contributor

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    What are my options on bullets selections for dog hunting? 23 1/2 in long , 7 1/2 twist
    Will 70 and 80 be possible?
     
  2. BenPerfected

    BenPerfected Gold $$ Contributor

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    Check out the Berger Bullet twist rate calculator.
    Ben
     
  3. AlloyTargets

    AlloyTargets Site $$ Sponsor

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    Berger 80gr FB Varmint shoot well in an 8 twist with 4895 or XBR8208 for me. Plus they have a long bearing surface so you can prob load them into the lands even with a longer free bore that the fast twist is likely to have.
     
    steve s likes this.
  4. powderbrake

    powderbrake Gold $$ Contributor

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    Berger 88 Varmint flat base work great in my 8 twist barrel for P dogs.
     
  5. shoot4fun

    shoot4fun Gold $$ Contributor

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    I don't think you'll have any trouble shooting whatever you like but that is merely an opinion. I can tell you I have launched many a 40 grain Amax at 3,700+ FPS in a 7 twist AR barrel. None have blown up and it is very accurate. It's made a great combo for "ride & shoot" prairie dogging.
    I am assuming your barrel is a cut rifled and hand lapped Kreiger, Bartlien or similar and has been had lapped.
    As for those online twist rate calculators, I've never seen one that advised you were "over stabilized" with any bullet/twist combo.
     
  6. Mark deluia

    Mark deluia Gold $$ Contributor

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    Thanks all will try some 80 grain nosler BT I have a couple hundred laying around
     
  7. Stan Taylor

    Stan Taylor

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    I don't buy that website I let paper tell me what will shoot.
     
    dogdude likes this.
  8. JEFFPPC

    JEFFPPC

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    I'm 100% with Stan, what you see on targets will be the real answer.
     

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