What will you use When the bullets run out?
Ok, so i'm talking about a time where all the bullets have been used, and until you can find more or find a replacement projectile weapon you'll have to use something else, a close range weapon. Modifications can be made on said weapon
My Melee weapon would either be:
A crowbar: its a tool, and it has a long reach.
Bowie Knife: 6 to 12 inches in length, well made and can be stored in a sheath.
Axe(fire, wood cutting ETC): good reach, can chop wood and a good weapon.
Chain saw: Yes it makes alot of noise but it cuts through zombies like a hot knife through butter.
The weight of the weapon is also a factor, and if it needs fuel. But it is a good idea to have a back-up in case your ammo runs out.
I rest my case.