Cod Hole off of the Cape York peninsula had many this size 25 years ago.
Gulley was a little, skinny dude (maybe 130 pounds or so?). That was part of the big joke, you see. Because a rather larger man claimed to have been swallowed and spat out by that grouper near an oil rig. Most of us guessed that the big boy’s scuba tank was smacked on the rig or something and not bitten by the fish.
If I remember correctly, Gulley went to that same oil rig and speared a grouper—likely the same fish. Gulley actually said at the time, that the fish would not have been large enough to swallow the other man.