Good shoot. Could have went differently had other choices been made, but good shoot nonetheless.
After spotting it I probably would have sat for a minute or two and then made my own tracks off the trail if it didn't wander off the other way. I don't carry with an empty chamber in the backcountry myself, but if I were carrying that way I sure as poop would have chambered a round right after seeing the moose. That 2nd charge would have sealed that animals fate, if not the first.......