To demonstrate how effective their screen protectors are, Clear Plex mounted a Taurus Public Defender .410 on a custom made eight propellor multi-copter (octocopter) and fired at a Samsung Galaxy S4 smartphone. I am sure they used a low power .410 load designed for birds or other pests, not a high powered self-defense load, but nonetheless the video is pretty nifty.

Many thanks to Steven for the tip.