The Backyard Scientist roped the Taofledermaus crew into testing the ballistic properties of a 5/8 inch lead plate against a wide range of .22 caliber projectiles.
Perhaps the most traditional of ammunition types, the .22 rimfire round, typically with a unjacketed lead bullet, has been around for something like 150 years.
Team ‘maus took up the challenge to see if a .22 would could penetrate a 7.5-pound soft lead plate. Tested rounds include CCI Mini Mags, Stingers and, just to keep it interesting, a Crosman pellet powered by a .22 nail gun blank.
Makes sense.
Source Article from http://www.guns.com/2015/07/09/lead-on-lead-violence-will-a-lead-plate-stop-a-22-video/
