Yeah,
You can put a zombie down with one shot to the head, but there are a LOT of zombies.
What's a walking dead...some kinda zombie show? Well I consider a 100 rounds as woefully short of ammo. I do have a few calibers or gauges I don't really need much of..or types of ammo. I probably only have about a 100 or maybe a few more 12 ga slugs...mainly for my bear gun a tactical(hate that word) M-1 super 90 and a couple hundred buckshot rounds...but I can make them easily. I can probably find another 100 or so 5.7s for her..Then I can get my 357 Ruger combo back. I gave her a Rem 7400 06 for necessary and she has a very accurate 22-250 for yotes and wolfies and of course her favorite Rem 11-87. That gal can shoot that darn thiing. She's a less than a box dove limit shooter on average...be better if she shot more!
You can put a zombie down with one shot to the head, but there are a LOT of zombies.