280 AI Load Data

Discussion in 'Reloading' started by ramrod79, Jan 29, 2014.

  1. ramrod79

    ramrod79 Well-Known Member

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    Good day all I just recently purchased a Kimber Montana in a 280 AI, I had some slight mods done , trigger, bedding re-crown, now I am after some good load data , I was thinking of using some 162 AMAX or 140 AB ,or some 154 SST I also have , so if any of you Montana guys have any load data to share that would be greatly appreciated, I am hoping this gun will shoot .75-.5 MOA .
     
  2. Snowfighter

    Snowfighter Well-Known Member

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    Not from Montana. But I think I can help a bit.
    I've got a couple custom .280ai. Both of my rifles like H4831. Ive tried faster and slower burn rates and find 4831 to be the best for my rifles. With 162g maxes and 160g abonds over 59.3g of H4831 I'm getting reliable 1/3 Moa accuracy.
    Hope this gets ya started.

    Snowfighter
     

  3. Jud96

    Jud96 Well-Known Member

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    +1 either H or IMR 4831 is a great powder for both the .280 and .280 Ackley. Its also one of the best .270 WIN propellants.
     
  4. freebird63

    freebird63 Well-Known Member

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    In my 280AI, I have used H4834SC, IMR4350, H1000, IMR7828SSC, Retumbo
    Bullets have used are, 140gr accubond, 160gr accubond, 162gr A-Max, 168gr VLD berger, 168gr classic and 168gr long range accubond.
    My current pet load is with 168gr long range accubond and Retumbo powder with Fed 215M primers.
     
  5. Jud96

    Jud96 Well-Known Member

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    How long is your barrel? Retumbo seems to slow.
     
  6. freebird63

    freebird63 Well-Known Member

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    the barrel is a douglas 26", jewell trigger built on a rem 700 ADL action with boyd thumbhole stock.
     
  7. Jud96

    Jud96 Well-Known Member

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    Well that 26" is nice to have, especially when shooting those slower powders.
     
  8. Snowfighter

    Snowfighter Well-Known Member

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    I know some time has passed since you started this thread. Just thought of something else that might be helpful. In my experience with the .280AI I've never been able to get good accuracy out of Nosler 280AI brass. I've always had to fire form my own from Rem brass. Others may have their own experience. But I've found to get my rifle under .75 groups I needed to fire form. lightbulb
     
  9. Jcub

    Jcub Well-Known Member

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    Length of your bbl doesn't decide what powders to use. Just because your bbl is longer doesn't mean you can fit more powder into the case, which is what really matters.
     
  10. jsthntn247

    jsthntn247 Well-Known Member

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    Seems you have allot to learn.
     
  11. Jcub

    Jcub Well-Known Member

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    The same could be said about you.
     
  12. ramrod79

    ramrod79 Well-Known Member

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    Thanks guys i will try the 4831sc as I have quite a bit ,and hope for the best.
     
  13. chad

    chad Well-Known Member

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    what about reloader 17?
     
  14. Hornhunter32

    Hornhunter32 Well-Known Member

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    What kind of velocity are you getting with Retumbo and the 168's? I was going to test H1000 and Retumbo next.