The best Bergers for these twist rates?

Discussion in 'Rifles, Bullets, Barrels & Ballistics' started by Skinny Shooter, Mar 8, 2009.

  1. Skinny Shooter

    Skinny Shooter Well-Known Member

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    The application is for distant groundhogs.

    Am shooting a 1 in 12" 308Win Remmy and a 1 in 9.25" 243 Win Savage.

    I've gotten good accuracy with the old Wildcat 169.5gr bullets and the 175gr SMK in the 308.
    Am experimenting with the 105gr Amax in the 243 and am getting ok results.

    Berger doesn't list heavy varmint bullets.
    Not sure if I should go with the "match" or "hunting" versions of the following weights and if my twist rates will spin them enough.

    In the 243Win:
    95gr Match Hunting or Target VLD
    or 105gr Match Hunting or Target BT
    or 105gr Match Hunting or Target VLD.

    In the 308win:
    175gr Match Hunting or Target BT Long Range
    or 175gr Match Target VLD

    thanks
     
  2. clyde

    clyde New Member

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    Feb 27, 2009
    Berger's website lists their recommended twist rates. The 6mm 95's are listed at a 9" twist so they might work for you; 105's will not work.
    I don't know if they will expand before exiting a groundhog.
     

  3. ICANHITHIMMAN

    ICANHITHIMMAN Well-Known Member

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    for the 30cal I would use the 168g VLD in a 1-12 twist barrel
     
  4. Len Backus

    Len Backus Administrator Staff Member

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    Try this Excel spreadsheet that Eric Stecker of Berger gave me.
     

    Attached Files:

  5. Skinny Shooter

    Skinny Shooter Well-Known Member

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    Thanks for the info.
    I looked back over my targets for the 105gr Amax and with a little tweaking they are better than ok.

    Clyde, I saw that the 105 Berger would work in a 1 in 8.
    If the 105 Amax shoots well in a 1 in 9.25, why wouldn't the Berger?
    Maybe the Berger is longer?

    ICANHITHIMMAN, why the 168 and not the 175? Better velocity?

    Len, thanks for the file.
     
  6. clyde

    clyde New Member

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    Yes, I think the Berger VLD is probably longer than the a-max and needs a tighter twist. Maybe the Berger 105 BT would be similar to the a-max. I know that my 1:10 twist 243's would stabilize most 95 and 100 grain bullets but not the long, high-BC 95 gr SMKs.