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The legislature further finds that this is a well-calibrated policy based on evidence that magazine capacity limits do not interfere with responsible, lawful self-defense. Based on this evidence, and on studies showing that mass shooting fatalities declined during the 10-year period when the federal assault weapon and large capacity magazine ban was in effect, the legislature finds that restricting the sale, manufacture, and distribution of large capacity magazines is likely to reduce gun deaths and injuries. In addition, firearms equipped with large capacity magazines account for an estimated 22 to 36 percent of crime guns and up to 40 percent of crime guns used in serious violent crimes. Documentary evidence following gun rampages, including the 2014 shooting at Seattle Pacific University, reveals many instances where victims were able to escape or disarm the shooter during a pause to reload, and such opportunities are necessarily reduced when large capacity magazines are used.
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Large capacity magazines have been used in all 10 of the deadliest mass shootings since 2009, and mass shooting events from 2009 to 2018 where the use of large capacity magazines caused twice as many deaths and 14 times as many injuries. Firearms equipped with large capacity magazines increase casualties by allowing a shooter to keep firing for longer periods of time without reloading. Findings -Intent -2022 c 104: "The legislature finds and declares that gun violence is a threat to the public health and safety of Washingtonians.
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