The origin of the holes remains unexplained and NOAA is soliciting theories from the public. Here's my theory.... Illegal Aliens... from Sirius Prime.
However, decades of sci-fi movies prove that M855 can rip through hyper-advanced Alien shields like tissue paper. When phasers, lasers, disruptors and proton particle beams fail... our primitive lead slugs always save the day. YAY Humans!!
Maybe it's time to stock up on M855.... if you can find any.