Which preposition to use with reload

with Occurrences 4%

As I was reloading with feverish haste, I saw an Indian rush at Colonel Washington with raised tomahawk.

for Occurrences 2%

At their feet a third squatted, reloading for them as occasion required.

on Occurrences 2%

There in a manner at once simple, ingenious and effective, they will be sorted and returned, either into delivery vans at the street level or to the trains emptied and now reloading on the train level.

at Occurrences 1%

I could not see there, and I could not look for bear and reload at the same moment.

Which preposition to use with  reload