Has an AFL game ever ended 73-43?
Exactly once. On June 28, 1980, Footscray beat Melbourne 73-43, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 73-43 in league history.
That makes 73-43 the 3836th most common final score out of 6,607 that have ever occurred in AFL. One point away, 74-43 has happened never and 73-44 has happened 1 times.