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240 weatherby mag

 
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  #15  
Old 05-07-2013, 11:56 PM
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Join Date: Jun 2003
Location: Oregon
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Re: 240 weatherby mag

Joel Russo,

what's the barrel life assuming you allow for the barrel to cool off after 2 rounds? Myself, just a long range coyote and mountain lion hunter shooting these at deer and elk wintering feeding grounds trying to promote the population of these elk and deer. No hound hunting nor baiting of cougar and bears in Oregon since the 1990's and it's taking it toll.

Is it true that 105 grain Berger's will blow in a 1:8 twist barrel @ 3300FPS?
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  #16  
Old 05-08-2013, 05:44 AM
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Re: 240 weatherby mag

Barrel life is certainly hard to predict in any configuration, not to mention a hot 6mm. Your barrel will last longer, read less throat erosion over time, if you are not shooting 10 shot strings in competition. If you are using this rifle as a varmint rifle or hunting rifle, then you will most likely see many years of service before you have any discernible throat erosion. If I had to take a guess at round count, I would say acceptable accuracy would last for approximately 600-800 rounds.
My rifle was built as a dedicated groundhog rifle, with no concern about barrel life. I figured I would get many years of use before I had to re-barrel. Six years later, it's still shooting well.
My velocity is accurate as I have clocked it over an Oehler 35, 43, and PVM22. I'm running a Hart 28" barrel that may be on the fast side.
When I built the stock, I conducted a brief round of load development to verify my load. It grouped in the .1s at 100, and hung around 1" at 300 yards.
If you're concerned about blow ups, you may consider using a 9 twist. The 9 twist will stabilize the 105-107 bullets easily. I have shot the 105 A-Max, 105 Berger, and the 107 Sierra in my rifle. The barrel likes them all equally as well, I just chose the thinner jacket bullet for the dramatic effect on groundhogs.
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  #17  
Old 05-08-2013, 06:07 AM
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Re: 240 weatherby mag

Never shot a .240 Wby, but I do love my .257 Wby Mag. It's about the perfect whitetail caliber when you mix it with the 110 Nosler Accubonds or 115 Berger VLD's.
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  #18  
Old 05-11-2013, 06:13 AM
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Re: 240 weatherby mag

Regarding blowups. I am shooting a 1 in 7.5 Bartlein 5R in 6mm-284 with 105 gr Berger hybrid. Velocity is 3445 fps with 28" barrel. Round count is just over 900 and no blow ups to date. No deterioration of accuracy but it is getting harder to clean.
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  #19  
Old 05-11-2013, 10:49 PM
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Re: 240 weatherby mag

I shoot a 6x284 and it will do anything a 240 WBY will do. Plus brass is easier to get,not sure if its cheaper though.
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  #20  
Old 05-12-2013, 12:31 AM
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Re: 240 weatherby mag

I picked up (200) VIRGIN!!! 240 Weatherby at a estate sale and they all come in factory 20 round Weatherby boxes. I honestly thought they were once fired but when I got home, I noticed that they were nice and shiny inside the cases, every single one of them. The good news? I only paid $20.00. So I guess the brass is not hard for me to find?
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  #21  
Old 05-12-2013, 12:55 AM
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Join Date: Oct 2008
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Re: 240 weatherby mag

Wow! Dude, you got a smokin deal!

If you come across some 7mmSTW, 7Mag, or .257 Wby mag for that cheap, holler at me!
__________________
"I'm just a peckerwood who lives in the hills with too many guns..." - Bob Lee Swagger

"Give me a minute...I'm good. Give me an hour...I'm great. Give me 6 months...And I'm unbeatable." - Col. Hannibal Smith

Ignore everything I say, because I have a reading comprehension and memory problem...

Quote:
Originally Posted by WildRose View Post
The 284 is to the STW what a tricycle is to a Ninja.
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