Has an AFL game ever ended 103-46?
Exactly once. On June 16, 2018, Fremantle beat Carlton 103-46, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 103-46 in league history.
That makes 103-46 the 3836th most common final score out of 6,607 that have ever occurred in AFL. One point away, 104-46 has happened 1 times and 103-47 has happened never.