This is actually the best weapon to use on them. Doesn't run out of ammo. Gives you a 10-12' range. And is specifically designed to remove heads. While yes a gun is a great weapon to have, but most people will end up out of ammo due to the fact that many people do not shoot very accurately. This on the other hand takes a little training to use. It won't look pretty or be the most efficient at first, but it will always work and you will have plenty of time to practice. There are a lot of people in the world, and they can all be zombies at any time.
"Those who say they don't fear Death are either Lying or Insane. Which am I?"
-Hades
God of the UnderWorld as well as the Erratics