Since 1980, there have been at least 56 mass shootings (3 or more fatalities) where the shooter used high-capacity ammunition magazines. A total of 507 people were killed in these shootings and 497 were wounded. This number is likely a significant undercount of actual incidents since there is no consistent collection or reporting of this data. Even in many high-profile shootings information on magazine capacity is not released or reported.
High-Capacity Ammunition Magazines are the Common Thread Running Through Most Mass Shootings in the United States
Jul 1, 2017