Remember, its not about the size of your gun, it is how much ammo you have. Remember to stash ammo in various caches around your local area because you never know when the zombie hordes will strike and you may be stranded somewhere for long periods of time.
Against zombies? Oh boy, I am not stupid. Any how, in the event that it should take place, I actually don't think I'll be *that* overwhelmed - at least given that most zombies from the movies come off pretty half-witted. Seriously can't think about it, at the moment.