So I was thinking if I need to become mobile swiftly in an emergency I didn't have an easy way to transport long guns. I did some research and found a nice case that can hold 4 scoped long guns in padding, with wheels and it's lockable. So that lead to, which 4 would I take? THAT lead to, in an emergency event, would I take an ar10 AND an ar15? I have a bolt gun to accompany either. So, if you were forced to choose, would you take .223 or .308? For weight and scrounging ammo, I'd say .223. For maximum effect and range I'd say .308. I'd also take a scoped .22.