338 win mag, 300 win mag, or 300 weatherby mag?

Discussion in 'Rifles, Bullets, Barrels & Ballistics' started by banjo318, Apr 13, 2013.

  1. banjo318

    banjo318 Well-Known Member

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    Well im going to rebarrel my 7mm remington magnum soon. So i need to decide on a longish (to 1000 yards) hunting rifle. I need to make a point that the 338 win mag is flatter shooting than the 7mm remington magnum and provides way more punch. Anyways, I have a 300 win mag and its wonderful for that, but the 300 weatherby is better. The 7 stw might be an option but i dont think ill choose that. This rifle will be used at 400 yards for the closests shots. It must be able to take down elk at 1000 yards. (must still have 1500 ft lbs of energy at 1000.)
     
  2. banjo318

    banjo318 Well-Known Member

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    Just to put this out there, the 339 win mag has a 200 ft pound of energy advantage over the 300 weatherby.
     

  3. bigngreen

    bigngreen Well-Known Member

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    How you figure that???
     
  4. CliffM

    CliffM Well-Known Member

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    What bullets would that be comparing?
    I could not get enough speed out of the 300gr/.338 to better the 210gr/.308 bullets.
    Cliff
     
  5. 300shortmag

    300shortmag Member

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    Out of the three, I would say 300 Wby. Have you considered the 7mm RUM? I have one and it is awesome.
     
  6. lloydsmale

    lloydsmale Well-Known Member

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    if your truely going to shoot elk at a 1000 yards, which by the way i personaly thnk is nuts, Id go for all the gun you can shoot. Id consider a 300 ultra or 338 ultra or a 340 wby
     
  7. banjo318

    banjo318 Well-Known Member

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    comparing 220 grain partitions and 300 grain SMK
     
  8. banjo318

    banjo318 Well-Known Member

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    300 grain matchkings and 220 partitions. Of course this is not with the same powder, but its the best velocity i can get out of it.
     
  9. banjo318

    banjo318 Well-Known Member

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    I cant choose any of the large RUM's because of my bolt head. I don't want to pay even more to have a gunsmith change it to a rum bolt head.
     
  10. banjo318

    banjo318 Well-Known Member

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    The more and more i think about it i think 300 weatherby will be the winner. Although im still thinking about that 338 win mag.
     
  11. D.Camilleri

    D.Camilleri Well-Known Member

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    338 rum, same bolt head as your 7mm, the gunsmith will however need to open up the rails in the action and install a ultra mag follower and magazine box. I changed my 338 win to a 300 rum (I already had a 338 rum)
     
  12. Bart B

    Bart B Well-Known Member

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    If one's objective is to shoot bullets accurately and shot placement is paramount, then consider the cartridge that has the least recoil. Doesn't matter if a brake lessens it after the bullet leaves the muzzle; it still moves a lot while the bullet's going down the barrel.

    Belted cases are not all that great for best accuracy when reloaded. Rimless bottleneck ones are much easier to reload to be a tack driver.

    I consider the .300 RUM the ultimate compromise to have the best suite of accuracy, shootability and hunting performance at the longer ranges. It's worth opening up the bolt face.
     
  13. barnesuser28

    barnesuser28 Well-Known Member

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    If you take a look at Rich Sherman's (elkaholic) 30/375 S.I. i think you will change your mind.:D:Dgun)
     
  14. Bart B

    Bart B Well-Known Member

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    I don't think so.

    The difference in what they do with the same bullet's not worth having to reform cases before you can shoot them in my opinion. That subtracts from "shootability" which includes getting components and loading them.

    I'd like to see the muzzle velocity difference between both cartridges with the same barrel length, peak pressure, bore and groove dimensions for heavy 30 caliber hunting bullets. This would be a realistic comparison. Even if the .30-.375 shot 'em 50 to 100 fps faster, that' enough to negatively effect "shootability." More muzzle velocity is countered by more recoil making the faster ones harder to shoot accurately.