For those too young to remember, there was a time when carnival shooting galleries used actual .22 rifles. At some point in the latter half of the 1900s game makers switched to pellet or BB guns and then everything went electronic.
Nowadays the shooting galleries you see at arcades and carnivals use light to trigger hits. Frankly, I'm surprised it's taken this long for someone to use their camera's flash to "hit" every target. Genius. Too bad shooting galleries don't typically reward you with prizes other than self gratification at hitting all the targets. [Jay Ashland via Petapixel]