Retumbo and 243 Ackley Imp.

Discussion in 'Long Range Hunting & Shooting' started by mbianchini, Mar 30, 2003.

  1. mbianchini

    mbianchini Well-Known Member

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    Dec 3, 2002
    Any one using Retumbo in the 243 Ackley Imp. 40.

    NEW TOY
    243 Ackley Imp. (.271) Chamber Reamer from Dave Manson

    Farley action and rings.
    Krieger 8" twist 28.5" HV

    Jewell Trigger.

    Leupold 18x40 LR by Premier Reticles
    Dave Bruno did the Chambering and Fitting.

    I did the stock work and the Sikken Viper Race Yellow Paint.

    Shehane McMillan ST-1000 stock from Bill Shehane (D&B Supply)
    Rifle weight 17.5 lbs.

    [​IMG]

    [ 03-30-2003: Message edited by: mbianchini ]
     
  2. 4mesh063

    4mesh063 Well-Known Member

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    Dec 8, 2002
    Nifty matchin rest!

    Hmmm, I can't immagine retumbo working in a 243AI. Benchmark or Varget, Yea.
     
  3. mbianchini

    mbianchini Well-Known Member

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    4mesh063

    Benchmark or Varget your crazy. Im talking about 243 Ackley Imp 40 with 105 gr bullets. Not no 6 BR
     
  4. Guest

    Guest Guest

    Varget works great in my .243 AI with 70 gr NBTs(3750 fps), but is too fast for the heavies... I use N560 behind 100 grainers for 3200 fps from a 24" tube.. Its good powder for in this cartridge for the heavier bullets...
     
  5. Guest

    Guest Guest

    [ 07-11-2003: Message edited by: S1 ]
     
  6. 22 Mag

    22 Mag Member

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    Mar 22, 2003
    I have not used Retumbo in my .243 AI, but I have used IMR 7828 with mixed results. The powder gets my 105's or 107's up to speed, about 3300 fps, but the best groups for my gun were not at warp speed, but just under. I have a Win M70 in .243 AI with a 28" 1-8 twist Pac-Nor tube on the standard stock for the Win HV. I hope this helps

    22 Mag
     
  7. mbianchini

    mbianchini Well-Known Member

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    Dec 3, 2002
    Retumbo seems to be to slow. Looks like RL-25 is the best choice.