Yes, assuming you can legally possess ammo.
No special law ref: hollow points.
No
Hollow point bullets literally have a hollow point, and ball ammo does not.
No
No, they are not.
Yes, you can find a wide variety of readily available 9mm hollow point bullets and ammunition.
No, they are not.
yes
No
Yes.
No
yes
Yes
http://en.wikipedia.org/wiki/Dum-dum