Has an AFL game ever ended 49-29?
Exactly once. On June 18, 1910, Sydney beat St Kilda 49-29, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 49-29 in league history.
That makes 49-29 the 3836th most common final score out of 6,607 that have ever occurred in AFL. One point away, 50-29 has happened 1 times and 49-30 has happened never.