Has an AFL game ever ended 181-76?
Exactly once. On April 29, 1950, Essendon beat Sydney 181-76, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 181-76 in league history.
That makes 181-76 the 3836th most common final score out of 6,607 that have ever occurred in AFL. One point away, 182-76 has happened never and 181-77 has happened never.