High-Capacity Ammunition Magazines are the Common Thread Running Through Most Mass Shootings in the United States

Jul 1, 2017

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.

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