That was very educational. I enjoyed every one of the different impacts, with dufferent types of bullets. From lead to jacketed, to FMJ, & birdshot. I wonder who makes the bullets that have a pointed base? Also, the lead bullets with a cupped base imploded backward near the end of their destruction. Or the "bulb" of metal being pushed ahead of a bullet penetrating plate steel. The shockwave expansions etc. All of it is VERY informative. I wish they had posted what kind of bullet & material the were impacting for each shot though. EXCELLENT footage.