Glaser Safety Slug is as close as I get to using a "safety bullet"........:o)
Stay Safe !!
But I would never consider using Glasers as an all round defensive ammo. I'm sure they're great in the right application, airplanes, little apartments with thin walls, etc.
I wouldn't use it on the street in winter when the bad guys are bundled up in swearshirts and parkas.
Proving once again that 'safe' weapons and ammos are actually safer for bad guys.