I would love to see this tech adopted in some of the cartridges that would pass the lawyer test. Yes, the .308 Should be able to handle the same treatment as it is the case itself taking the brunt of the additional pressure but there is no way lawyers are letting 50-60 year old rifles shoot this stuff. I do think a .338 federal with this case would make about the perfect knock around Alaskan do it all gun, a handy short action 35 Whelen AI.
Take the 350 legend and this tech and you have a 348. A 450 Marlin and you have a level gun stopping rifle. It is interesting to see where it goes with existing newer cartridges that never really gained traction or brand new efficient cartridge designs.