Is Federal Hydra-Shok a good strategy and tactic to use in self-defense? When I first picked up my handgun from the transfer dealer, he showed me Federal Hydra-Shok and Speer Gold Dot. He recommended the Hydra-Shok, which is the one I bought as my non-practice personal defense ammo. Is using Federal Hydra-Shok a good strategy to use for personal self-defense? What is the difference between them and other hollow points? The only difference I can see is a shaft in the middle of the hollow part. What does this shaft do? How does Hydra-Shok vs. Speer Gold Dot vs. regular hollow points compare in effectiveness?