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Thread: My 300 Wby chrono result

  1. Default My 300 Wby chrono result

    At the range today I tested some fabric fodder in my 300Wby Accumark with 200grs Nosler Partition.
    Mv was clocked to 3129 fps, and that I find quite promising. In the cases there was 82.8grs of powder.
    I will try to duplicate the load using Norma powders next time on the range.

    RUM = Poor Man's Weatherby!

  2. #2
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    Default Re: My 300 Wby chrono result

    Not bad. What powder were you using this time?

  3. Default Re: My 300 Wby chrono result

    Fabric load, giving 3129 fps. I think it will be hard to duplicate with handloads. I will try next weekend using MRP as a start...

    RUM = Poor Man's Weatherby!

  4. #4
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    Default Re: My 300 Wby chrono result

    Fabric.
    I assume you mean factory.

    Box says 3060fps, so you did well with your rifle.

  5. Default Re: My 300 Wby chrono result

    So, tried to duplicate the load using Norma MRP with the same weight. My chrono showed 3072 fps, so they used a blended powder I think to get the results.
    Anyway, my load is WAY OVER MAXIMUM in any reloading manual and should not be tested by anyone. (You have been warned)
    My pressure measurements shows that my load vs. the factory ammo is similar more or less.

    RUM = Poor Man's Weatherby!

  6. Default Re: My 300 Wby chrono result

    Will try some 200grs Sierra bullets using Bofors RP30 powder. Seems promising checking it with GRT/QL.

    RUM = Poor Man's Weatherby!

  7. Default Re: My 300 Wby chrono result

    Got 3100 fps using RP30. Will try more (hotter) loads next weekend...

    RUM = Poor Man's Weatherby!

  8. #8
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    Default Re: My 300 Wby chrono result

    Still looking good.

    Accuracy?

  9. Default Re: My 300 Wby chrono result

    As some Weatherby's, boat tail bullets is not the favorite. I will for sure test some flatbase bullets, but I'm out of them in 200grs just now.
    BTW, I got 3100fps using Norma MRP as well. But that's max, so I believe that RP30 will get me around 3150fps or so...

    RUM = Poor Man's Weatherby!

  10. #10
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    Default Re: My 300 Wby chrono result

    What bullet is next?

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