>>6639650 /lb
IIRC, early on in the C-17 delivery process (planes delivered from factory to USAF) the Generals were eager to get a mission under it's belt. I seem to recall a C-17 being used to drop either a MOAB or a Daisycutter on the Taliban, thereby scoring a Cargo Pilot some combat medals. The bomb was literally shoved out of the back of the plane by the Loadmaster on cue.
No sauce, 1st hand experience at Charleston AFB (East Coast C-17 base) 99-02
Same as seen here with the C-130