Australian here, there are plenty of whites around to knock off a 3m one. I'm from one of the biggest white breeding grounds in Aus and 2.5-3.5m sharks were pretty common along with the bulls and tigers. There were also resident sharks closer to 5 and further north when the whales would migrate the big girls came out (5-6+). Theres a museum up near Fraser Island (Hervey Bay) of a guy who used to catch these back in the 70s-80s (Vic Hislop). There is a 5+ meter one on ice as well as a picture/painting of the biggest one he caught which went over 6.
