Brou, Shivan - thanks, guys
Naked80 - As stated, the .458 SOCOM was spec'ed at a MAWP of 35,000 psi. The brass was spec'ed with Starline at that pressure, and that is also the pressure max to which the CorBon loads are developed. As to published source, as was stated as well, I developed the round. CorBon has the test rifle with which they develop the rounds and determine MAWP. Would that suffice?
I do not know where the information originated that suggests the .458 SOCOM operates at significantly higher pressure than the Beowulf. I realize that some handloaders out there have pushed the envelope and loaded to a significantly higher pressure, but the same has been done with just about any cartridge. We have no control over that. We have a report of one person using a load that should have exceeded 100,000 psi, and lived to tell about it.
Regarding the Beowuld and Grendel, at GunStock, Bill Alexander and I had adjoining booths and enjoyed playing "you show me yours and I'll show you mine". And I REALLY like his little Grendel ... 6.5 is a beautiful caliber.
Marty ter Weeme
Founder, Teppo Jutsu LLC
Home of the .458 SOCOM
[url]www.teppojutsu.com[/url]