As others have said ammo is rarely/if-ever transported in connex containers. The lack of security, locks, and warnings on them also indicate they are
probably not full of ammunition. Placards have to be used past a certain weight, and if you were going to put ammo in a connex box, due to the
hazards of being unable to secure it inside the box, it would likely be full to the brim, which would certainly increase the weight.
Not to mention in rapid deployment it would be harder to get a wooden/metal box of ammo out of a connex container than off a standard pallet.
Side note about the large quantities of .40 purchased: The .40 caliber (also known as 40 S&W) is the standard carry round for all U.S. law
enforcement. Standard police issue, Homeland Security, standard FBI carry, etc. There are other rounds carried in specialized circumstances, but the
.40 is the standard. Training and qualifying, and any additional exercises, eats through a tremendous amount.
Some numbers to play with. An average day at the range for me with my PPQ in .40 is 300 rounds. Keep multiplying that by the number of people
involved in large training exercises and that number grows quickly. I don't know if the qualifications differ from state to state or organization to
organization, but an LEO friend of mine says he puts an easy 500 through his issued Glock if they do a training/drills day.
Perhaps another LEO or similar could chime in? My point is pretty simple on the quantity of ammunition purchased: you go through a lot very quickly
even by a single person, add in a few departments worth of people and you can easily start sending 20,000 plus a day downrange. Also, the military
standard issue sidearm is a 9mm, so it likely isn't going to National Guard or state-bound military.
Edit: I know it would still take a -large- number of people to eat through a billion rounds, but if you figure some are for training, exercises,
active and future, plus deployment to other facilities, and then the general rule of having more rather than less - it doesn't seem too
edit on 30-1-2013 by UnmitigatedDisaster because: (no reason given)