Some courses hand out bonus points like there is no tomorrow. My sibling is doing a course at UQ which has a median SR of 99.95, but when you look at it unadjusted its about 98.30. It'd be a good idea to have a look at any bonus points you're eligible for, like i said before there are UNSW courses which will hand out about 5 bonus points to your atar just for fulfilling a few criteria, like meeting b6/e4 requirements.