460 weatherby mag long range???

Discussion in 'Rifles, Bullets, Barrels & Ballistics' started by mcharger440, Aug 28, 2015.

  1. mcharger440

    mcharger440 Well-Known Member

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    I'm toying with a new build and was trying to think outside the box ...Lehigh bullets has a 458-528 grain long range bore rider bullet is there something I'm missing or does this have some real potential.... The only reason I got to weatherby is that I have a mk v action sitting there in the safe and with the jump on a weatherby wouldn't a bore rider be ideal ??? Thoughts??
     
  2. jfseaman

    jfseaman Well-Known Member

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    I hate to discourage anyone...

    My observations:
    not a large number of bullet options for high BC .458s
    a velocity of ~2650 is doable with a 28" barrel, 30" or more might more fitting to the project. The factory 24" will limit things.
    the factory twist rate will not be enough to stabilize the bullet.

    Since the barrel won't stabilize anyway, a barrel change is in order. If it were me (and I have "plans"), I would go with something closer to a 375 Mjolnir found here http://www.longrangehunting.com/forums/f19/500-jeffery-based-wildcats-107936/

    or if commited to the 458 caliber, a 458 version.
     
  3. mcharger440

    mcharger440 Well-Known Member

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    I currently have just the bare action sitting there and Shilen said it was not a problem to make me a 33" blank in a 14 twist and on lehighs website they state that a 15 twist is sufficient at 2800 now I won't make 2800 but at a 14 twist I would think it would stabilize that bullet and if I could scratch 2700 out of a 31" barrel the long range potential should be astronomical ...right...???
     
  4. mcharger440

    mcharger440 Well-Known Member

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    The b.c. Of the Lehigh 528grain bullet is listed at .828
     
  5. IdahoCTD

    IdahoCTD Well-Known Member

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    I would do a .416 over a .458. Cutting Edge makes a 340gr .780 BC bullet that can go nearly 3000fps in a RUM case so another 100+fps would be easy with a 416 Weatherby case They also make others with higher BC's. The .375 is probably the better answer as there are a lot more bullets available in .375 cal as has been mentioned.
     
  6. mcharger440

    mcharger440 Well-Known Member

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    I was thinking that the 458 barrel would live longer
     
  7. IdahoCTD

    IdahoCTD Well-Known Member

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    I bet a .416 Weatherby would go 2000+ rounds. That is a lot of punishment on both ends.
     
  8. rcoody

    rcoody Well-Known Member

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    That is a lot of punishment on both ends!

    understatement!!!

    Why!!!

    I think a black powder cannon would be more fun!
     
  9. mcharger440

    mcharger440 Well-Known Member

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    Lol true this fits into my "hair brained ideas" category
     
  10. MOA Chaser

    MOA Chaser Well-Known Member

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    Incoming!!! :D
     
  11. Swamplife

    Swamplife Well-Known Member

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    No Doubt! My 378 Weatherby pushing a 300gn pill at 2975 is about as much punishment as I'd care to endure.


    Darren
     
  12. mcharger440

    mcharger440 Well-Known Member

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    This is still in the idea stage but you guys got me thinking what about a 408/378 weatherby mag??? Built similar to a 50bmg(brake big barrel and heavy chassis)
     
  13. Garycrow

    Garycrow Well-Known Member

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    Your shoulder will cry uncle long before the barrel will.