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25-06 or 257 Weatherby?

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15 December 2011, 08:28
wapiti22
25-06 or 257 Weatherby?
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?


US Navy RETIRED
NRA LIFE MEMBER
15 December 2011, 08:45
montea6b
A lot of these kind of questions can be answered here: Cartridge dimensions
15 December 2011, 09:18
ramrod340
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
15 December 2011, 09:22
Westpac
Sure. It should be a fairly simple transition.


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16 December 2011, 05:01
wapiti22
so is it as simple as using a 257 finishing reamer? It's a Shilen barrel


US Navy RETIRED
NRA LIFE MEMBER
16 December 2011, 05:13
ramrod340
quote:
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