With an AC-130 gunship sparking the curiosity to see just how far rounds fired from the air would penetrate the earth, Matt on Demolition Ranch picks a fight with the dirt.
Starting with a 1911 and moving up to a S&W .500 Magnum, .308, and finally, to the .50 BMG from a Barrett, he gets dirty going back to dig the rounds up.
Of course, if he wanted to go for the full AC-130 experience, he should have borrowed a 20mm, 30mm, 40mm and a 105mm to cover the different variants of Spooky and Specter.
Source Article from http://www.guns.com/2017/05/30/the-barrett-50-cal-as-a-drilling-machine-how-deep-will-it-go-video/