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7mm mag to 358 NM question
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Is it as easy as reboring the barrel to 35 cal or wound the chamber need work? Thanks, Optik1
 
Posts: 375 | Location: linwood Michigan | Registered: 07 February 2008Reply With Quote
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Case dimensions are different, so yes chamber work. then feeding work. The one I had rebored I just put a detachable mag in. Ugly but it works.
 
Posts: 1111 | Location: oregon | Registered: 20 February 2009Reply With Quote
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I rebarreled a Sako L61R 7mm Mag to a 358 NM. Used a Sako factory profile 26" barrel from Shilen. No feeding work required. 4 rounds down. Wish I had gone a little longer on the throat - I like to seat my bullets long.


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Posts: 3080 | Location: Austin, Texas | Registered: 05 April 2006Reply With Quote
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Thanks for the responses. Optik1
 
Posts: 375 | Location: linwood Michigan | Registered: 07 February 2008Reply With Quote
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I have taken a Winchester model 70 Classic and a Ruger Mark ll, both of which were chambered in .338 Win mag.,and have had them rebarreled to .358 Norma magnums. I had absolutely no feeding or extraction issues with these conversions-they ran like they were specifically designed for the Norma without any action modifications. You may want to explore using a .338 Win. Mag. donor action and rebarreling in your cost analysis. It worked for me…
 
Posts: 153 | Location: Wapiti Way, MT | Registered: 29 September 2002Reply With Quote
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I have two 358 norma mags one built on a Remington 700 that started Life as a 7mm Remington mag and an Inter arms mark x that was as a 7mm Remington mag, neither one required feeding work and feed just fine from the factory magazines!
 
Posts: 817 | Location: jimtown ND | Registered: 21 January 2011Reply With Quote
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