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300 weatherby 24" barrel 200gr, 3000fps?

Discussion in 'Handloading and Reloading' started by lefteyedom, Sep 28, 2012.

  1. lefteyedom

    lefteyedom Active Member

    Mar 18, 2006
    Can a 200gr BTHP bullet fired from a 300 Weatherby reach 3000 fps out of a 24 inch barrel? What other if any 300 mag can? Any ideas?>

  2. Captcurt

    Captcurt Participating Member

    Aug 9, 2010
    Ozark Mountains of Arkansas
    I checked a couple of my loading manuels. The Weatherby max 's out at almost 3000 fps along with several of the other 30 Mag's. The only ones that I found that surpassed it were the 30-378 and Remington Ultra Mag with both topping out at 3100 fps.

    I will never understand why they keep designing cartridges that mimic ones that are already on the market? All you do is pay extra for ammo or components.
  3. rg1

    rg1 Participating Member

    May 26, 2006
    I'd expect about 90 fps difference in a 24" barrel versus a 26" 300 Weatherby barrel. Info says it's barely possible to reach 3000 fps in a 26" barrel so I doubt you'd quite reach 3000 fps without major pressure in a shorter barrel. Very little difference in ballistics at hunting ranges between 2900 and 3000 fps with a 200 grain bullet. Weatherby brass has a little more case capacity than does Remington or Federal brass and you have to reduce charges in RP or FED brass and velocity would be a little less and pressures greater at same charges of powder.
    Last edited: Sep 28, 2012
  4. jmr40

    jmr40 Mentor

    May 26, 2007
    Most of the time I see about 1/2% to 1 percent velocity loss per inch, so expect 15-30 fps less per inch. Or about 30-60 fps velocity loss from a 24" barrel vs 26".

    3000 fps is very doable with 24" barrel and good loads. Look here http://www.alliantpowder.com/ and here http://www.ramshot.com/ You should be able to do it with either Ramshot magnum powder or RL25. Individual barrels vary quite a bit. One barrel may make it easily with a max load, another could be 100 fps short of 3000 with the same load and need a bit more powder to do it.

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