378 weatherby

Discussion in 'Reloading' started by postaleagle, Feb 5, 2006.

  1. postaleagle

    postaleagle New Member

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    I was just wondering, with such a large case capacity, what wildcats have been based on this case. (other than the 30-378 and 338-378). How would a .25 or 7mm perform? Anyone ever heard of such?
     
  2. Waffen

    Waffen Well-Known Member

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    My buddy has an 8mm-378 chambered in a BRNO Mauser with a set trigger. It's pretty darn nice. I don't remember the chrony specs off the top of my head, but I will get them for ya and post here.

    As for using a .25-378 I can't help but think you would just burn barrels extremly fast, even with a 378 case I would bet you couldn't get a .25 over 4300-4500FPS. I would certianly be intrested in seeing such a wildcat, but I bet it would burn barrels like you wouldn't belive.
     

  3. sullijr

    sullijr Well-Known Member

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    Build one and let us all know how it works
     
  4. James Jones

    James Jones Well-Known Member

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    seeing that the 30-378 is already way overbore , I don't think that you would be gaining much by making a 25-378 unless you were using a 40" barrel and some sort of super slow powder.
    From what I've seen , I think that with standard barrel lenght say 28" , the 25-300Win mag will do about everthing that the larger cased rounds will do with less powder.
    Speed is a great thing in some cases but most of the time your gonna find that a round will shoot its best at a lower speed tan you want to get , like the 6.5-284 it could possibaly run a 140gr bullet out at close to 3000fps with a long tube and slow powder and around 60 or grains of powder. and a 6.5-300RUM might be able to run that same bullet out at maybe 3500 fps but I'd be willing to bet that it would not be nearly as accurat as the 6.5-284.
    And I don't care what you shooting ,you just can't miss a critter fast enough to kill it !!!
     
  5. uncleB

    uncleB Well-Known Member

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    have you ever heard of the Eargensplitzenloudenbooomer ????
    just neck it down to .224 and you have a 50 shot barrel life . do your self a favor and leave a 378 a .375 and dont go smaller than .338. A 25-378 Wby.is much better as a ditch burner than a legitimate varmint -big game cartridge
     
  6. POP

    POP Well-Known Member

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    [ QUOTE ]
    Build one and let us all know how it works

    [/ QUOTE ] Yeah and after 10 shots replace the barrel! /ubbthreads/images/graemlins/grin.gif /ubbthreads/images/graemlins/grin.gif /ubbthreads/images/graemlins/grin.gif /ubbthreads/images/graemlins/grin.gif /ubbthreads/images/graemlins/grin.gif /ubbthreads/images/graemlins/grin.gif
     
  7. Buffalobob

    Buffalobob Writers Guild

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    Roy is working night and day to solve the bore burnout from powder temperature issue. He'll have this solved by the weekend and we will all be shooting 17-408CTs or 204-50BMGs.
     
  8. POP

    POP Well-Known Member

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    [ QUOTE ]
    Roy is working night and day to solve the bore burnout from powder temperature issue. He'll have this solved by the weekend and we will all be shooting 17-408CTs or 204-50BMGs.

    [/ QUOTE ]

    /ubbthreads/images/graemlins/grin.gif /ubbthreads/images/graemlins/grin.gif /ubbthreads/images/graemlins/grin.gif