Penetration = 16 ± 0.031" + (11 of 12 pellets traveled out of back of block, one pellet recovered at 14.1 ± 0.031") Impact velocity = 1287 ± 0.500 feet/second Block calibration, BB velocity = 592 ± 0.500 feet/second Block calibration, BB penetration = 8.7 ± 0.05cm Shot was fired at a distance of 7.5' from shotgun muzzle. Block was covered in four layers of 12.5 ounce denim fabric. Fabric was drawn into the permanent cavity to ~ 4" depth. 11 pieces of shot penetrated the entire length of the block, with the 12th piece recovered at ~ 14" depth. This pellet was notably out-of-round. Wadding of shell recovered at 8" depth. Block was nearly sectioned into three distinct pieces as a result of the shot. Block turned ~ 180 degree rotation in the air as it was pushed backwards off of its test stand. Pieces of denim fabric were discovered at the points of pellet exit at 16" depth. Shotgun barrel length = 20"