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Author Topic: The SAAMI PSI Nos for the 378  (Read 419 times)

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Offline jro45

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The SAAMI PSI Nos for the 378
« on: January 21, 2006, 10:40:55 AM »
I was wondering what the SAAMI PSI #s were for the 338 378. I know the 338 RUM's saami PSI #s.  Think they would be close? :D
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Offline Lone Star

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The SAAMI PSI Nos for the 378
« Reply #1 on: January 21, 2006, 04:41:39 PM »
I do not believe that there are SAAMI specs for the .338-378 cartridge.  The highest pressure load that Hodgdon lists is 54,300 cup, so I assume that the max is 55,000 cup, the same as for the parent .378 Weatherby.  Most Weatherby calibers have 65,000 psi maximums.
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Offline jro45

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The SAAMI PSI Nos for the 378
« Reply #2 on: January 22, 2006, 04:45:04 AM »
Thanks Lone Star,  I thought that they would be around the same as the 338 RUM which is 65000 psi.
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