Via Mitchel M. on the gun email list at work:
The interesting part starts at 1:46.
This may mean that the new “tracers” could be safely used when the fire risk from normal tracers is too great. I’m a skeptical they can match the brightness of the pyrotechnic based tracers. But they probably would work for many applications.
And of course there are application where incendiary rounds will be needed when tracers might have worked.