243AI powder?

Discussion in 'Rifles, Bullets, Barrels & Ballistics' started by jacack, Apr 24, 2003.

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  1. jacack

    jacack Well-Known Member

    Sep 21, 2002
    I was wondering what people are useing for powder for the 243AI with the 107MK's and 107BergerVLDs. I was thinking H4350 or H4831

  2. Guest

    Guest Guest

    Jared, those powders are too fast. Try something with a slower burn rate and you can pick up 100 to 200 fps. [​IMG]
  3. jacack

    jacack Well-Known Member

    Sep 21, 2002
    S1 H1000??
  4. mbianchini

    mbianchini Well-Known Member

    Dec 3, 2002
    H4831SC is a bit to fast to get the velocity im looking for. I would look towards RL-25 or N170 If using RL-25 try to get a lot that was made this year.
    This lot of RL-25 is a bit slow than the last lot that I had. The last lot was a bit temperature sensitive which it was an older lot. The lot im working with now was made this year. 1/9/03

    N170 looks promising but the RL-25 has been my favorite. below is my favorite load.
    49.7gr RL-25
    Lupua brass
    Federal 210 match primers
    JLK 105s on the lands.
    Lilja 8” twist 29” HV 3 grove.... 3345fps at 72°>Oehler P35
    Krieger 8" twist 28.5 3280fps at 71°>Oehler P35

    Rifle configuration.

    243 Ackley Imp. (.271) NK Chamber Reamer from Dave Manson which is throated .075 for the 105 VLDs
    Farley “S” action and Farley 30mm rings.
    2 Krieger 8" twist 28.5" HV,& Lilja 8” twist 29” HV
    Jewell Trigger.
    Leupold 18x40 LR boosted & 1/16 MOA dot on 40x by Premier Reticles
    Dave Bruno did the Chambering of the barrels.
    I did the stock work and the Sikken Viper Race Yellow Paint and clear
    Jewell 1.5oz BR trigger. Bat Machine Stainless Trigger guard
    Shehane McMillan ST-1000 stock from Bill Shehane (D&B Supply)
    Shehane TRACKER polished billet aluminum buttplate
    Weight 16.5 lbs.