Range Systems is known for designing and building shooting ranges. Recently a video has been going around social media of a new ballistic rubber lining that can take pistol and rifle rounds at point blank distances.
I was rather surprised that he shot the ceiling. While I am not comfortable with shooting guns vertically, if the ballistic rubber can contain the round safely then it would be good for negligent discharges. I am curious how thick this ballistic rubber bullet trap needs to be to safely contain pistol rounds and rifle rounds.
For more information go to Range-systems.com