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25-06 or 257 Weatherby?
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I have a short-chambered barrel in 25-06 that I had planned to put on a Mauser action. I'm now thinking I would rather have a 257 WBY mag. Is it possible to change from a 25-06 chamber to a 257 WBY and how difficult is it?


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Posts: 526 | Location: Seattle | Registered: 17 June 2010Reply With Quote
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A lot of these kind of questions can be answered here: Cartridge dimensions
 
Posts: 1138 | Location: Washington State | Registered: 07 September 2005Reply With Quote
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Other than needing to convert the bolt face you might have an issue with the 257Wby having a .285 neck OD and the 25-06 has .290. Besides if the barrel is not at least 26" I wouldn't bother.


As usual just my $.02
Paul K
 
Posts: 12881 | Location: Mexico, MO | Registered: 02 April 2001Reply With Quote
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Sure. It should be a fairly simple transition.


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This is my rifle, there are many like it but this one is mine. My rifle is my best friend, it is my life.
 
Posts: 3171 | Location: SLC, Utah | Registered: 23 February 2007Reply With Quote
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so is it as simple as using a 257 finishing reamer? It's a Shilen barrel


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Posts: 526 | Location: Seattle | Registered: 17 June 2010Reply With Quote
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so is it as simple as using a 257 finishing reamer? It's a Shilen barrel

Yep Should be that and alter the bolt face.

You might be able to see a ring on the 257 neck caused by the 06 necking be larger. Total difference is about a sheet of copy paper.


As usual just my $.02
Paul K
 
Posts: 12881 | Location: Mexico, MO | Registered: 02 April 2001Reply With Quote
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