It also depends on the size of the rabbits. If their face fits thru the wire much and they get scared they may hurt themselves trying to squeeze thru. 2x3 wire can bend, I'd be afraid a rabbit could push its head thru and get stuck.
I have used cages made of this to put a rabbit in so I could clean its cage and watched as the rabbit nibbled grass thru the bars, decided then that wouldn't be good material for rabbits on my place. To many predators! I know their safer in the cages with 1x2 wire. So far in six years we've lost a few chickens and no rabbits.