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  1. #1
    Marlin Marksman
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    Accurate Arms load for 338MX

    I wrote AA and asked them if they had worked up any load data. They gave me a reply using the same AA2520 Hornady has listed.

    HOWEVER the recommended loads differ and AA's goes to a higher velocity.

    Here's what they sent:
    Sam,
    We suggest the following.
    Caliber: .338 Marlin Express.

    Barrel length: 24”

    Powder: Accurate – 2520®.

    Bullet weight: 200 grains.

    Start load: 42.8 grains (2200 – 2300 Ft/p/sec)

    Maximum load: 46.5 grains (2475 – 2525 Ft/p/sec).



    NOTES:

    It’ important to note that SAFETY is our prime concern therefore we strongly recommend.

    1. TO ALWAYS BEGIN LOADING AT THE RECOMMENDED MINIMUM “START” LOAD and develop loads in 2% increments towards the MAXIMUM load.

    2. CAUTION: Beware of double charging if the loading density is below 50% of the available volume.

    Examples:

    Ř Most Handgun caliber/powder combinations as well as

    Ř A-5744 with reduced loads for rifles.

    3. If possible, measure the velocity and correlate with our data.



    Regards

    Johan Loubser

    Ballistician

    Ramshot.Accurate Powders


  2. #2
    Site Contributor Contributing Member
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    Re: Accurate Arms load for 338MX

    Different rifle, different conditions. They can all have affects on a load.

    Just speculation maybe hornady didn't want to upstage their factory load. I emailed hodgdon for data too and they load higher than the hornady data too.
    It is introspective, and I want to introspect.

  3. #3
    Tinhorn
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    Re: Accurate Arms load for 338MX

    Very interesting... a full 2 grains higher! Thanks for the data - I will use this as I am running up those 160gr barnes TTSX loads.

  4. #4
    Site Contributor Gun Wizard
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    Re: Accurate Arms load for 338MX

    Thanks quietman for sharing the info. I also wrote to Alliant Powders for info on the 338 but have not received a response. I like to do business with people that care enough to respond to the needs and requests of potential customers. Fom
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  5. #5
    Team 35 Remington Co-Capt'n Contributing Member
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    Re: Accurate Arms load for 338MX

    Sam,

    Thanks for the data. My brother recently bought a 338 MX and I have been looking for load data. Since I'm using AA2520 for the 35 Remington, this is a good fit. I'm going to work him up a load and hopefully we can chronograph it. His gun has the 22" barrel, so velocities should be a touch slower, but should still be pretty good for deer and black bear.
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  6. #6
    Site Contributor Gun Wizard
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    Re: Accurate Arms load for 338MX

    I get better velocity out of a lighter load than 46.5. 45.9 gave me 2530fps av. 46.5 only averaged 2515 out of my MXLR. Fom
    Rom 5:8 But God commendeth his love toward us, in that,while we were yet sinners, Christ died for us.

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