Try those socks with another wool sock on top (if it does not crowd your feet too much). I.e. treat them as sock liners, and see what that does for you.
Ken,
I wore the Army socks as an experiment to see how well they hold up to cold. They don't. And my boots are too tight for two pairs of socks.
The next time I go out kilted in the snow I'll wear some "real" kilt hose, either Lewis or the ones I've made, and my waterproof boots.