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Rifles, Reloading, Optics, Equipment
Gunsmithing
converting 7mm Rem Mag
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<blockquote data-quote="shortgrass" data-source="post: 1112788" data-attributes="member: 24284"><p>Your 'research' was incomplete. The body of the .260/280 Nosler case might be based on the Jeffery, but the rim is that of the std. magnums. You might want to take a look at <a href="http://www.saami.org" target="_blank">www.saami.org</a> for industry stds. Industry standard drawings of MAX cartridge and MINIMUM chamber dimensions are there. The .260 Nosler is listed under "New Cartridges", the 7mm Rem Mag is in the "rifle" list. Reliable feeding would be the main challenge. Mag boxes for the RUMs/WSMs/RSAUMs have that diamond shaped notch in the mag box wall for that large diameter shoulder to fit into. It can be done, but it's a PIA! Conversions like this are for the hobbyists, where time isn't a concern. Many don't have the fortitude to follow it through. Lots of unexpected 'hic-ups" and challenges to be met with, along they way. One might try shortening the extended Wyatts box, that has the cut outs, but that's a lot of work for little gain other than to say you have rifle chambered for the "new" Nosler cartridge.</p></blockquote><p></p>
[QUOTE="shortgrass, post: 1112788, member: 24284"] Your 'research' was incomplete. The body of the .260/280 Nosler case might be based on the Jeffery, but the rim is that of the std. magnums. You might want to take a look at [URL="http://www.saami.org"]www.saami.org[/URL] for industry stds. Industry standard drawings of MAX cartridge and MINIMUM chamber dimensions are there. The .260 Nosler is listed under "New Cartridges", the 7mm Rem Mag is in the "rifle" list. Reliable feeding would be the main challenge. Mag boxes for the RUMs/WSMs/RSAUMs have that diamond shaped notch in the mag box wall for that large diameter shoulder to fit into. It can be done, but it's a PIA! Conversions like this are for the hobbyists, where time isn't a concern. Many don't have the fortitude to follow it through. Lots of unexpected 'hic-ups" and challenges to be met with, along they way. One might try shortening the extended Wyatts box, that has the cut outs, but that's a lot of work for little gain other than to say you have rifle chambered for the "new" Nosler cartridge. [/QUOTE]
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converting 7mm Rem Mag
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