+1 for boxotruth
As for FUN overpentetration testing, thats just plain fun, but without any real scientific results....Cardboard box with 12 inches of wet newspaper, 2 peices of drywall 4 inches apart, and another box of newspaper...
Here are my Scientific results...
.22 LR is NOT good for stopping a rampant bundle of wet newspaper
12 guage #8 birdshot will only pentrate to the sports page
.223 This weak round will only go through the first bundle of paper , the drywall AND the second bundle of paper, with a good chance of wounding the innocent mountainside behind it..
.45 auto, I hit the paper in the arm and it spun around 4 times and died from massive amounts of hydrostatic shock ..and stuff