It is a
You might be tempted to use me but beware, for being hasty could make you a hypocrite.
Many people see it as the first solution to many problems (let's just kill that person), but if you don't think much before using it, it makes you a hypocrite
I sometimes like to hunt. Especially birds. The more the better!
Bullets are used in hunting. More birds with one bullet is always better.
Some people like the sound that me and my friends make when we start spinning around.
When the bullet starts spinning in air after it's shot it makes a distinct sound.
You better make sure I am not within you for that could only make you an evil person or cause you horrible suffering.
If the bullet is inside someone either that person is evil or is termed evil by media, and it causes horrible suffering to anyone who has a bullet inside.
You might wonder who I am, but know that there is only one answer and that will never change for it is within me.
Not sure of this one, but lead balls and other projectiles which were use as bullets before are used inside bullets now