Another of my YouTube favorites, Taofledermaus, has appealed to both my love of IT and firearms. Setting up over 50 lbs of hard drives, he and his cohorts put a M855 “green tip” into 5″ HDD platters.
I had high hopes for the light “armor piercing” round, but its penetration fell short. Moral of the story? Wear neodymium armor and ensure that you best data is on Western Digital.