Streak cold tracers fired from a FN 509 Tactical with Holosun 507C, SilencerCo Osprey 9 and Viridian X5L green laser and light combo.
They don’t burn hot with chemicals like normal tracers, and are range safe because of that. The trade off is they are only visible from dusk till dawn and are only visible from behind, which can be a good thing for carry reasons.
These were the 9mm 147 grain TMC Red
Muzzle Velocity: 920 feet per second
Muzzle Energy: 276 foot pounds
50 yard Velocity: 884 feet per second
50 yard Energy: 255 foot pounds