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Thread: 338-06 AI load data

  1. #1
    Member bigswede358's Avatar
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    Default 338-06 AI load data

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    Went out and shot my 338-06 AI again this morning. I was happy with the accuracy of my loads with RL 15, but felt the velocity was lacking a little bit. Today I tried out H4350 and IMR 4895. The target on the left is from 2 loads of the H4350 and the one on the right is from the top load of 4895. I used CCI 200 large rifle primers, R-P reformed 30-06 brass, and Hornady 200 gr flat base bullet. Seating depth measured with Hornady bullet comparator off of ogive at 3.655. All 3 shot groups.

    H4350
    62.0 gr-2771,2745,2752 fps group size-.780 inches
    63.0 gr-2821,2788,2783 fps group size-.800 inches only 2 holes from 3 shots
    64.0 gr-2816,2809,2786 fps grous size-.480 inches just starting to compress load
    max in my rifle

    IMR 4895
    57.5 gr-2856,2865,2858 fps group size-.400 inches
    58.5 gr-2898,2928,2904 fps group size-.810 inches
    59.5 gr-2961,2944,2950 fps group size-.520 inches avg fps 2951, only pressure sign was primer not all of the way rounded, but not flattened. This is the target on the right.
    I will use this as my hunting load, I think it will cleanly kill deer and elk out to 300 yds.
    LIVE TO HUNT....HUNT TO LIVE!!!!

  2. #2
    Member bigswede358's Avatar
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    So is there a formula to determine pressure, or does one need pressure testing equipment. My top load didn't seem over pressure to me, but i have only been reloading for a few years. i don't want to be way over pressure and damage myself or rifle. Is there a way to figure this out?
    LIVE TO HUNT....HUNT TO LIVE!!!!

  3. #3
    Member nrc's Avatar
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    To _really_ know, you need pressure testing equipment. To get a real good estimate there are software tools out there that can help (quickload comes to mind).

    Either way - you have a 2900 fps load that is accurate in your rifle. You're good to go.

    Nate

  4. #4
    Member bigswede358's Avatar
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    Thanks for the opinion. I am 3 grains over what Hornady has listed for a unimproved 338-06. Everything looked ok to me, a second opinion is always nice to have.
    LIVE TO HUNT....HUNT TO LIVE!!!!

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