this site...theboxotruth.com.... has some great short reading information. I did a search here and couldn't find any reference so I figured I'de post it. If it's old news, then disregard. For those who haven't been there, it's great info. All kinds of cool shit... what bullets will do when hitting a windshield or car door, how hollow points react after hitting several layers of clothing.... well you get the point...check it out,,you won't be disappointed if guns are your thing like mine.