[runfiverun]

everything i shoot costs .10-.15 a round depending on powder used.
thats 9mm through 0-6

[Metronome]

From my crude calculations, the winners in the economy section of factory loaded ammunition is the Wolf/Barnaul trio of: 7.62x39mm, .223 and 9x19mm (I would acutally say that 9mm Makarov would be the cheapest but it isn't really a mainstream caliber, and other than a Bison, I don't think anyone makes a rifle that could shoot them odd-sized 9mm's).