Velocity Quote Please

Discussion in 'Rifles, Bullets, Barrels & Ballistics' started by FullCurlHunter, Oct 17, 2008.

  1. FullCurlHunter

    FullCurlHunter Well-Known Member

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    Hey Guys,

    Can someone let me know what a nosler or hornady manual quotes me for speed with the following load. I am on the road and dont have access tomy books and am running some ballistic drop charts.

    300 Wby Mag
    82.0 grains of H4831
    180 grain Nosler Accubond, BC approx. .509
    26" barrel

    Thanks!
     
  2. Shortmagman

    Shortmagman Well-Known Member

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    I looked at two different manuals. The Nosler # 6 and the new Speer #14. First the Nosler manual does not use H4831 in reloading a 180 grain bullet. The Speer does and it lists 81 grains as the max load. The velocity listed at 81 grains is 3050 ft/sec. This load was shot from a 26 inch barrel using, RP cases and CCI 250 primers.
     

  3. FullCurlHunter

    FullCurlHunter Well-Known Member

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    Interesting. I took it up to 83.0 grains with no signs of high pressure at all. I have seen 84 listed as max.

    Thanks for looking that up.

    Does anybody else have an estimate or numbers?

    Thanks
     
  4. Ridgerunner665

    Ridgerunner665 Well-Known Member

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    Hornady 7th edition says 80.7 grains is max...at 3,100 fps. (test gun was a Weatherby Mark V with a 26", 1 in 10" twist barrel)

    Speer #14 and Sierra edition V, do not list H4831 with that round...they do list H4831SC, but that powder is a bit different.
     
  5. Long Time Long Ranger

    Long Time Long Ranger Well-Known Member

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    One of my all time favorite accuracy loads for the 300 wby is 82.5 grains of H-4831 with a 180 grain bullet. It averages 3230 fps with a 26" barrel
     
  6. FullCurlHunter

    FullCurlHunter Well-Known Member

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    Yea, 82.0 grains is shooting fairly nicely out of mine. I was guessing around 3200 fps.