This used to be the mindset of those considered "fringe survivalists" but is now becoming the prudent response - unbelievably! But this strategy will still be thwarted, as the Marxists will attempt to confiscate at gunpoint even the most remote resources in this country when the festering inner cities are completely ravaged of any source of sustenance by the democratic animals.
I'd say, rather, stock up on ammo and those tools that project it accurately.
(That was the third precious metal I listed.)