https://www.pcgamer.com/fortnites-shotguns-finally-nerfed-traps-buffed-back-to-normal/

In a small update to Fortnite with massive implications, Epic Games has finally nerfed shotgun damage (and restored trap damage from 75 to 150, thank goodness). 

"For awhile we felt that Shotguns promoted healthy close quarter gameplay, however with the recent equip time changes, Shotguns are being used more often than we like," the update reads. "It's something we've been keeping an eye on, but broadly speaking we feel Shotguns are a little too strong in their current state."