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Anyone use a 8mm/RUM or 8mm/378 WBY

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  #1  
Unread 11-03-2008, 01:27 PM
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Anyone use a 8mm/RUM or 8mm/378 WBY

Trying to find some information on both. Wanting to build a wildcat on a Savage action. I was told this would be a great forum to find information on some big boomers.

Thanks
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  •   #2  
    Unread 11-03-2008, 06:08 PM
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    Re: Anyone use a 8mm/RUM or 8mm/378 WBY

    Why not just rebarrel it as a .338-378 Weatherby Mag.

    That's a real "big boomer".

    I have a 7mmSTW...which is an 8mm necked-down to a .284 caliber bullet.

    It's a hot-shooter. I enjoy the hell out of it!

    Why not just go with a 7mmSTW???

    You can find ammo for it, you can shoot 1,000+ yards with it...and it will take down ANYTHING on the PLANET!!!


    I'd suggest either a 7mmSTW.......or a .30-378 Weatherby Mag. or a .338-378 Wby. Mag.


    Of the three, my top choice would be the .30-378 Wby. Mag...but ammo will cost you about $100-130 a box!!!

    7mmSTW ammo will run you about $50-70 a box.

    And .338-378 Wby. Mag. ammo CAN run you close to $200 a box!!!


    So, I'd stick with a 7mmSTW...bad-ass round, and will do whatever you plan to use it for!

    Even scare the **** out of other people at the shooting range, when you fire it!!!

    However, I'd strongly recommend a muzzle-brake.

    I'm no little, weak guy...by ANY means...

    But...It's not the politest round on your shoulder, if you plan on shooting it all day long.......don't be a fool......get a muzzle-brake!
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      #3  
    Unread 11-03-2008, 10:17 PM
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    Re: Anyone use a 8mm/RUM or 8mm/378 WBY

    holy crap slayer! no more coffee for you. that wore me out trying to follow that post.
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      #4  
    Unread 11-03-2008, 11:01 PM
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    Re: Anyone use a 8mm/RUM or 8mm/378 WBY

    I think the biggest drawback with an 8 mm is bullet selection, or lack there of. You will be very limited on your bullet selection.

    Another problem would be cost. This is a wildcat.....no factory dies. Custom dies are not cheap!!! Best case would be a bushing die with proper bushings. I did some costom loading for a 7mm-300 wby and simply used my 300 wby neck die with the proper bushings. I don't know that this would work with what you want. As far as FL sizing a wildcat with a standard die......I think you would be out of luck.

    I agree with the other guys....7 stw, 30 378, 33 378, or a Lapua.

    But, if ya gotta do it....let us know how it works out!!!

    Good luck, and have fun!!
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      #5  
    Unread 11-03-2008, 11:02 PM
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    Re: Anyone use a 8mm/RUM or 8mm/378 WBY

    8mm bullets have sucky BC's, 338 is definetly the way to go.
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      #6  
    Unread 11-03-2008, 11:03 PM
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    Re: Anyone use a 8mm/RUM or 8mm/378 WBY

    Like I've said before...sometimes I get a wee-bit bored @ work.

    Plus I felt he needed all the facts before he gets into "big boomers".

    You don't necessarily want a gun that that's so damn big, that you can't afford the ammo, to make it go BOOM!

    You know?

    I mean...he's a "Newb" on here, so, I don't know how far his "big boomers" knowledge extends???

    Hahahaha!!!!
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      #7  
    Unread 11-04-2008, 02:00 AM
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    Re: Anyone use a 8mm/RUM or 8mm/378 WBY

    If there were a decent bullet for the 8 mm the 8/ 378 would be a great cartridge, but there ain't so go with the 30 or 338/378.
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