Interesting and scary range observation.
My brother and I spent several hours at the range yesterday. During a pause in the shooting, my brother directed my attention to the ceiling directly in front of the firing bench. The sound proofing in the first 15 to 20 feet was littered with bullet holes also some of the lighting fixture covers had a few holes in them. This appears to me as mis-handling of a fire arm. Kind of scary that some shooters either did not read the instructions or are just not paying attention to what they are doing.