I sent them a nasty email today. His moron partner kept bringing up COP KILLER BULLETS. WTF are cop killer bullets? Are there any pistol calibers that go through vests? No!
Not to nitpick, but I'm fairly certain that a 5.7x28 would go through a vest, and possibly a tokarev depending on the vest and the load. Vests depend on the kevlar or aramid fibers acting like a net to catch the bullet. The smaller the projectile and the higher the velocity, the more likely it will make it through a vest.
That said, in general a handgun is a handgun and a rifle is a rifle.