Don't remember ever draining a magazine, but do carry a few in one of those red plastic holders that Federal cartridges came in.
Fits in my right back pocket.
If I left camp without extra ammo, I wouldn't go back to get it.

Democracy is not freedom. Democracy is two wolves and a lamb voting on what to eat for lunch. Freedom comes from the recognition of certain rights which may not be taken, not even by a 99% vote.
*Marvin Simkin* L.A. Times (1992)