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243 AI twist rates

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Unread 12-16-2006, 10:49 AM
Bronze Member
Join Date: Feb 2006
Posts: 66
243 AI twist rates

I use mainly 68 and 70 grain bullets what would the best twist rate be for this ?? may lasy barrel was 1 in 13 my new barrel should hacve been a 1 in 12 but the smith that ordered it has totally messed it up and even sent the wrong contour as well as a 1 in 10 twist,anyway Iam now informed that the company whos barrel iam having only does a 8 9 or 10 twist,will I be OK with a 10 twist
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    Unread 12-16-2006, 11:40 AM
    Junior Member
    Join Date: Dec 2006
    Location: Colorado
    Posts: 18
    Re: 243 AI twist rates

    You should be. Don't know if you are shooting Berger's or not, but their recommendation for 6mm 68 and 70 gn Match Bullets is 1:13. I have a 1:10 Hart on my 6mm TCU rifle and it does great with 68 gn Berger bullets.
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    Unread 12-16-2006, 01:38 PM
    Gold Member
    Join Date: Oct 2004
    Location: Northamptonshire England
    Posts: 676
    Re: 243 AI twist rates

    My 243 Rem had a 1-9 1/4 twist and shot 68grn Bergers and 70 SMKs extremely well so i think a 1-10 will be okay.
    However you should always go for the minimum twist that will stabilize your chosen bullet and Bergers recommendation
    is worth taking note of.

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