I think I would be a survivor. Im from Wyoming, where the only thing to do when your bored is shoot guns in the hills or go hunting/fishing/camping.
I own as of now, a .40 XD S&W, a Mossberg 500 12ga 18inch tactical shotgun, a Tactical SKS with bayonet, Remington SPS 700 .223 with 24 powered dual plane scope, Sig Suaer .22 pistol, 2 rugar semi-auto .22 rifles, Old Russian mosin nagant, and looking to buy another pistol in the 9mm. All of which have between 100-500 rounds.
I could last a while living in the mountains with my hunting/fishing/camping experience, plus a low population living in the northern part of the state, along with natural traps and cliffs for any walker who stumbles up the mountain...
I like to think i would last, but when it comes down to it, who really knows right?