Originally Posted by rsilvers
How do you get 25 cents a round for 5.56mm?
The cheapest I know of is 35 cents a round. The median (50% above and below) has to be higher than 35 cents.
Median is the number in the middle when you line up all the data so you're right, 50% above and 50% of the data below but that data isn't necessarily distributed evenly.
Anyway, I don't know where you're buying ammo but I suggest googling better next time. Cabela's has brass case ammo for 26c and aimsurplus has steel case for 18-19c. Just two examples.