Speer Gold Dot Multi-Caliber Stress Test

Bruce compares 9mm, 40, and .357 SIG fired at an off-color block of ballistic gel proved by Clear Ballistics, covered two layers of medium weight denim, and 3 layers of pig skin.

http://mousegunaddict.blogspot.com/2012/12/speer-gold-dot-multi-caliber-stress-test.html