I see no problem using a single shot shotgun for home defense. Obviously you have more options with more ammo, but all you really need to know how to do is fight with what you have. It may not be the best choice out there, but it will do if it is what you have. Never let anyone tell you that you are helpless; you could work with a lot less than that if you had to! Many of us fall into the severe "overkill" factor as far as home defense options are concerned. I certainly don't mind if someone wants to have 10,000 rounds of "home defense" ammo, and five semi-auto rifles by their bedside. To each their own. But, let us be honest here for a moment: 1) You don't need all of that stuff under 99.99% of situations. 2) A single load of well placed buckshot (or a slug) will end most gunfights. 3) You aren't expecting an invasion by a foreign army, you are trying to ward off Joe-crackhead, the junky who is burglarizing you (or someone of equal charm). These idiots often work alone. In my experiences, even the ones who bring friends are often unarmed, or have one weapon to share. 4) Once you go beyond a box or so of ammo, you are really crossing into the "Zombie Zone". Sure, 150,000 rounds of centerfire ammo would be great to have around when the undead take over the world, but it isn't necessarily a practical requirement. I have a lot of ammo, mostly because I shoot a lot. I don't really need a lot of ammo for defensive purposes!