Last October I saw a History Channel show in which a firearms expert contended that a .22 semi auto handgun would be the best defense. He said that .22 calibre bullets are lightweight and plentiful and a mere .22 headshot would easily disable a “zombie” brain.
http://www.youtube.com/watch?v=OnCbOs5alYA&feature=player_embedded
Some of these guys seem to think that zombies are armored, or giants or something, they keep wanting more and more powerful armament.
The object with zombies is to simply penetrate their skull, to ‘pop their heads’.
The smaller caliber that is adequate, the larger magazine to reduce magazine changes and losing the sight picture, the ability to rapidly engage multiple targets accurately and with the least fatigue inducing activity seems to be the secret to success for me.
Give me an AR-15, 40 round mags and a high capacity 9mm for off the shelf guns and ammo.
I don’t want to be exhausting myself with a 12 gauge and a machete, especially in a crowd/ocean of zombies.
Those hot little 22 bullets would work great also, especially with 30 round pistols like the Kel-Tec 22magnum.