Seeing as this is a bug-a-salt, the most powerful salt gun in the world, you have to ask yourself one question … do I feel lucky.
A little BotE calculation: flies are of order 1 cm, and salt grains around 100 microns. Scale this up to human size and it’s like being hot by a chunk of salt 15-20 mm across, or around 75 caliber. At a pretty decent clip, too. So, ouch! And several chunks, really, so (n * ouch), which is why it can do in the fly. I may have to break down and get one of these and use my slow-motion camera to measure the muzzle speed. All in the name of science, of course.
h/t to Moontanman