Come on, Strife, don't pull up the bullshit over spears again. Read back a couple of pages, and you'll see definitive arguments as to why a spear is one of the shittiest zombie killing weapons available. And please don't plagiarize again, pulling your language and ideas from a book without giving credit.
Have you ever been involved directly in any sport, particularly along the lines of wrestling? Know anything about the human anatomy or the historical uses of spears, bayonets, short swords and other stabbing weapons? If the answer to any one of these questions were yes (good grammar, sounds weird), then you would know that taking a spear to a zombie is the last mistake you'll ever make.
Why, you might repetitively ask? Why, here is the answer, repetitively given: "Spears are bloodletting weapons. If you need to attack the central nervous system, you will be going through bone. Even a real spear will get stuck if used that way."
Further holes in the very professional-sounding, but ultimately foolish homemade spear instructions: Anything less heavy than a butcher's knife will just break as a spearhead, and broom handles and pvc pipe will also break. It's simply a matter of torque. If you don't believe me, go stick the end of a wooden broom handle into the ground and lean on it, bending it in the middle. It will snap, unless you weigh almost nothing. You would be less likely to break something actually INTENDED to bear weight, namely a hoe handle.
So if you are going to send people to their deaths with homemade spears, at least give them some reliable information about the kind of materials they need to make sure they don't just poke an eye out, so they can take one with them before they go (rather than just adding themselves to the population).
As far as cracking skulls, the average human being won't be doing that with anything weighing less than 5 lbs. Put that on the end of a broom? Laughable. I'm sorry to shatter your very professional, ill-thought and unresearched theory, but if a zombie apocalypse comes people like you will be getting brave, innocent people killed.
A .22 long rifle round is quite reliable for cracking skulls. I've hunted with them before. They kill deer quite well, though heavier calibers are normally used so you can target an easier spot and keep your trophy intact. While a human skull is tough, a .22 long has just enough power. It's designed to, in fact. Don't try it with short rounds unless the target is ~30 feet away; they have a smaller powder charge. Those are still 100% deadly when fired into the brain by pistol, as they tumble end over end causing massive damage. However, a pistol with short rounds is only reasonably accurate up to about 15 feet. In fact, the most effective and accurate weapon that I would put in the hands of an amateur (such as a housewife) for home defense is a .22 magnum revolver pistol. She won't have any trouble hitting a target with that.
...unless he backs up 30 feet and takes aim with a 9 millimeter. Got long hallways? Invest in an alarm system and professional shooting lessons.
A well-sited .22 rifle with long rounds is accurate enough to make shooting eye sockets a trivial matter up to around 50 feet for a trained marksman. My uncle is better, but he and my dad put on a show for us rapid-firing pocket change off a stump at 20 feet with semi-autos .22 rifles. Thanks to decent eyesight, steady hands and a tiny bit of training, I can pop targets about an inch in diameter up to around 80 feet. Anyone else can do the same after some practice if they stay calm.
And in case someone wants to ask for the umpteenth time, yes, yes, yes, a .22 long rifle round will penetrate a skull and destroy brain tissue up to at least 100 yards. It's not a matter of conjecture, nor something that can be debated, it's just fact. That is what it was designed to do, and it does it.