From Reason:

Depending on what counts as a “significant risk,” the probability that the subject of a temporary order actually would have used a gun to hurt himself or someone else may be quite low. If 10 percent is significant, for example, that probability might be around 5 percent (51 percent times 10 percent). So even if judges are weighing the evidence with such precision, they will be taking away the Second Amendment rights of people who almost certainly would not have committed suicide or murder.