The SAT Subject Tests are scored on a 200-800 scale. A score
of 600 is considered very solid. Keep in mind that a Subject Test
score is just one piece of information that colleges will use to
evaluate you. The decision to accept or reject you will be based
on many criteria, including your high school transcript, SAT
score, recommendations, personal statement, extracurricular
activities, etc. So, failure to achieve the necessary score
doesn't automatically mean that your chances of getting in have
been damaged.