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Thread: .280 Ackley Improved

  1. #1
    Join Date
    Jan 2009
    Veneta, OR

    Default .280 Ackley Improved

    I am wondering how much "loss" there is when firing plain old .280 in a .280 AI rifle ? I understand about the web stretch if the round isn't put together to fireform, I'm just wonderin' about velocity you would give up

  2. #2


    From all I've read about it, the loss is around 5%- just like most other "improved" rounds. Haven't chronoed the 280 version, but I've seen it with the 257 AI and 30 Gibbs.


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