Has an AFL game ever ended 70-24?
Exactly once. On July 28, 1900, Geelong beat Sydney 70-24, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 70-24 in league history.
That makes 70-24 the 3836th most common final score out of 6,607 that have ever occurred in AFL. One point away, 71-24 has happened never and 70-25 has happened 1 times.