The bullet in dreams is a bad omen. You should be aware of those around you. Perhaps there is this one person who you trust the most and he will deceive you when you wont expect him to do so. If you found a bullet in a dream, then you will find out who is working against you. If you were hit by a bullet, then it suggests to look after your health as it could be a sign of some illness. If you see a bullet, you should avoid making a big fuss about something and keep calm, otherwise it will bring you even more troubles.
Read more about dreaming of Bullets in other dream meanings interpretations.