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F/N Action

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Unread 03-20-2010, 10:08 AM
Junior Member
Join Date: Mar 2010
Posts: 1
F/N Action

I have a F/N commercial action that I am wanting to build a long range .338 rifle with. It is the Magmun action (It will chamber and has bolt face for .375 H&H). I had thought of purchasing the TRG-42 but that is a great deal of $$, or building a .338 Canadian, until finding about the .338 edge. Is the action I have described suitable for these calibers:.338 Edge, .338 Canadian or .338 RUM? Any help will be appreciated.
Nicholas in N. Idaho
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Unread 03-20-2010, 10:39 AM
Platinum Member
Join Date: Jan 2008
Posts: 4,399
Re: F/N Action

Not sure what action you have I can only assume sence your talking 338 EDGE its not a PBR/SPR but an FN Mauser style action? Do you know how old It is? Im sure one of the Smiths will no if its safe or not but when you talk old mauser actions there are only a few years and models that are real safe for building on.

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Unread 03-20-2010, 12:14 PM
Silver Member
Join Date: Apr 2007
Location: Fort Morgan, Colorado
Posts: 333
Re: F/N Action

The 338Edge or 338RUM should work fine in your FN Mauser action, but I am not familiar with the 338Canadian. Case head and case length (2.85 for Edge and 2.76 for RUM) are no problem. I have heard some speculation about the strength of these actions but the RUM operates at only about 2,000 PSI higher than the 375H&H, so if that slight increase in chamber pressure sends it over the limit it would have failed eventually anyway. I used one of these actions for a 264Win build and heard the same negative noise about that but never had a single problem with it, and the 264 operates in the same ballpark for pressure as the RUM's.

Last edited by Gunpoor; 03-20-2010 at 12:22 PM.
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