Real guns or replicas? Blank fire or special effects? The killing of a cinematographer on a film set has some in the industry rethinking their approach to firearms.
The rulings in Maryland and Oregon come amid a shifting legal landscape in the wake of a Supreme Court decision that has imposed new limits on gun regulation.
Lake City Army Ammunition Plant has made nearly all the rifle cartridges used by the U.S. military since it pulled out of Vietnam. In recent years, it has also pumped billions of rounds of military-grade ammunition into the commercial market.
The site was built for the military, but commercial sales are booming with little public accountability. Rounds have been bought by murderers, antigovernment groups and others.
In the past 25 years, people who tried to buy guns at gun stores were rejected because of having active protection orders about 78,000 times, according to the F.B.I.