Over the last 25 years, I’ve seen the requirements for law enforcement ammo go from one extreme to the other. In the mid-1980s, the concern about excessive penetration led ammo manufacturers to make ammo that would expand dramatically so that it wouldn’t over-penetrate the human torso and hit a non-hostile. Then, in April 1987, an incident occurred that changed how law enforcement viewed duty ammunition performance.
ICC claims they can engineer frangible ammo to perform just like copper-jacketed lead ammo. The duty-grade ammo from ICC is designed to fragment in the first six inches of flesh-like material, allowing the fragments to create a huge wound channel as they travel forward. This would certainly aid rapid incapacitation. However, the base of the fragmented bullet will travel 11–14 inches inside a block of ballistic gelatin—a consistent, homogeneous substance. This means that it will likely penetrate deeper in human flesh, unless a bone is struck.
International Cartridge Corp.