Some bullets tips are pointed. Some are rounded. Some are flattened. Does the shape of the tip dictate the overall damage at impact? For example, hypothetically, if a 9mm had it's normal rounded tip, and another 9mm had a flattened tip, (everything else identical) would the damage be different because of the tips? Would the flattened tip affect more area on impact and all thru the target? Or, for example, a .40 cal does have a flattened nose. If another .40 had a rounded nose, would there be a difference in ballistics?