Video posted on Task & Purpose at You Tube

[A5BLASTER]

To get that kind of MV/KE they are talking about, way back I said they'd need ~80ksi... looks like that's where they're going.

I watched the vid and the guys shooting that thing looks like they were struggling to stay on target with its recoil. So I'm sure the pressure is in the 60k plus area, that's why more recoil then a grendel or 556 would make, looks like it's a 308 NATO 8n recoil reaction watching those guys shoot it.