So why in the world would gunowners start using the term zombies? This is the modern day where all know that zombies do not exist. America has been arming itself to the teeth for some type of apocalyptic showdown...and gets on the web and starts talking SHTF and so forth and are admonished because of the political in-correctness of the terms shtf, jbt, and so forth...
So people adapted and began using silly codewords so they can talk. What caliber for JBTs? is a locked thread, but what caliber for Zombies? TFL plays along and lets it remain open.
Being polititically incorrect is somewhat fashionable now. Who can blame Hornady for cashing in on it, a hilarious by-product of Political Correctness, Zombie Ammo!