An appeals court ruled Thursday that California’s law banning gun magazines that hold more than 10 rounds of ammunition can remain in place, a decision that prompted one judge to record an unusual video dissent that shows him loading guns in his chambers.

Judge Lawrence VanDyke of the 9th Circuit went viral after posting a firearms demonstration video protesting a court ruling upholding California’s gun magazine ban. A Trump nominee, VanDyke argued his colleagues misunderstood firearms.

Judge Lawrence VanDyke released the video after a California appeals court upheld a ban on high-capacity gun magazines.