Open inspection window, rotate revolver, watch the offset (far right)
Fire the weapon, attempt to load another round, or eject old rounds, unable.
Must spend all rounds loaded into weapon before its a option to reload.
Also note that the weapon always seems to fire LOW and LEFT, as if the raycast or whoever the Arma Engine handles ballistics is off as compared to the sights - I was 20 meters away from a sign, fired 6 rounds, all rounds landed about 4" down and 7" left.
I will update to show the off-set of rotation if needed.