So stockpiling is the trend. So what are you planning on doing with all that ammo, powder and primers?
What history channel doomsday scenario are you planning for?
My outlook is that for any possible scenario you can dream up, being mobile is key to survival. A 420 round can of ammo gets heavy really quick.
You will need to carry lots of other things for survival.
What are you going to shoot? Animals for food? Good luck with that. Animals are in pretty short supply as it is now. Imagine when everyone becomes a hunter. My guess is you will be eating mice and bugs in short order.
Think you are gonna defend your condo from invaders? Once people find out you have a mini Walmart thing happening in your basement you will come under attack and be overrun in short order.
Need that ammo to defend liberty? You don't stand a chance unless some portion of the military gets on your side. And they will provide you with the guns, ammo and logistics anyway.
It just doesn't make any sense to have all this ammo stockpiled to me.