A few months ago Jeff from TAOFLEDERMAUS received some tripwire alarms designed for blank shotgun shells.
He took this opportunity to show what happens if a real shell is fired outside of a weapon. Click here to see the first video.
That first video was made to explain why these alarms would make terrible traps. Most viewers were confused, and suggested that Jeff wrap the shell with duct tape or use a brass cartridge instead.
Jeff listened and decided to find out what happens when the same alarms were loaded with .50 cal BMG cartridges.
See the results in the video below.