Dropped by the Tigard gunbroker a little after 4 today, was just browsing and checking prices. While I was standing by the shotgun rack, I heard a loud "BOOM!" Four employees and five customers are frozen in place. One of the employees was holding a Taurus .45 ACP rifle, which had apparently been loaded. Bullet hit the corner of the wooden shelf of the handgun display, travelling towards the front window. No one injured, just a bit nervous. Bullet did not exit the store, nobody came from other businesses to see what happened.