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Converting a 300WM to 257Wby

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Unread 07-25-2011, 05:42 AM
Silver Member
Join Date: Dec 2008
Posts: 183
Converting a 300WM to 257Wby

I have a 300 Win mag that has a burnt out barrel. The rifle is a Model 70 and I was thinking of putting a new barrel on it. Except this time I was thinking of getting a barrel for a 257 Weatherby put on it. My questions are:
Will this work?
Can I just do the barrel swap from 300WM to 257 and have everything(magazine, bolt face,etc) work for it?
"Skin that one, pilgrim, and I'll get you another!"
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  •   #2  
    Unread 07-27-2011, 01:04 AM
    Bronze Member
    Join Date: Jun 2011
    Posts: 64
    Re: Converting a 300WM to 257Wby

    I have both these cartridges and both have .532 Bolt face. I would say it would work through the mag box as well and if not, it wouldnít take much to make it work.
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