My school doesn't give letter grades.
It goes 4.0, 3.5, 3.0, etc.
80% 4.0s (Bio Lectures, Orgo Lectures, Biochem Lectures, Physics II, Physio II, Biochem I and a lot of non prereqs)
16% 3.5s (Bio Lab II, Physics I, Physio I, Human Genetics)
4% 3.0s (Genetics...)
Now with this being said, I'm scared as hell for admissions because if my MCAT isn't up to scratch my 3.8 + won't mean anything.