Has an AFL game ever ended 176-66?
Exactly once. On March 30, 1985, Sydney beat St Kilda 176-66, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 176-66 in league history.
That makes 176-66 the 3836th most common final score out of 6,607 that have ever occurred in AFL. One point away, 177-66 has happened never and 176-67 has happened 1 times.