Holy water hurts zombies now? Okay fine, I mean holy water has a bunch of uses. Fighting vampires, purifying the faithful, it’s incredibly hydrating (Better than Gaterade), and now it hurts zombies… I guess.
Also if you cram your blunderbuss full of zombie parts (Wow if I had a nickle for every time that’s happened) the damn thing’s going to rust on you.
That is not how you treat a weapon, young man.