SpudFiles

yes, that means you could theoretically fit a person with a 91" waist in the barrel, no sabot necessary. not that I suggest doing that, but it's still pretty damn impressive.

and I believe he was going to attempt 4x.

I can't imagine what he plans to use for burst disks.

Thanks _Fnord. You're always helpful!

my guess is an Orion booster shutoff test

just my 2 cents