I have never hunted as a product of being raised by hippie parents. I have never shot a rifle, I used to have a 20gauge shotgun for home defense. I was wanting help to chose a rifle for personal defense. This might sound kind of stupid, at least to the people at gunshops I try to ask. In my mind this is the scenario, it has hit the fan, chaos is all around I am in my bunker (apartment), and I see the enemy planning an attack at the street corner, maybe they want my food or water or ammo. or I need to move my location with "charlies" all around. I don't want to wait for them to come to me during the attack to use my pistols, i want to stop it in the planning stages. I had originally thought something full-auto, but ammo will be scarce and we don't know when the resupply will come, if ever. I think .308 because the military uses this and ammo might be a concern. I will not use this for hunting unless that is needed for survival in armagedon, and won't shoot it much only at the range to stay proficient. I figure it should be portable and somewhat easily carried with the rest of my armament. I was thinking bolt action, maybe like a savage 11fxp4. in 308. or SKS, ak47. someone has suggested all i need is .223 or .270 but I don't want to be outgunned. I know you usually get what you pay for, but in all likelihood I won't ever use it, so I kind of want to spend as little as possible. I figure I have to get something of decent quality so it doesn't fail, I would be looking for something less than $400. Any suggestions or ideas would be appreciated as I don't know much about rifles, carbines, etc.