"Maybe it's just too many years working Austin Bay and Al Nofi?"
over my head. don't know him that well.
Isn't this the technology we used while developing the "bunker buster" bombs in GF1?
Seems like I remember reading that we took 105 howitzer barrels and filled the ends with concrete followed by high explosives with a time delay fuse. Suckers would punch deep through the rock before detonating.
Is my recollection correct?