Honestly, right now tracer ammo is the only stuff I can find that’s actually in stock for 5.56. But while it may be available, there’s a reason indoor ranges don’t appreciate it when you shoot it in their facilities. This Dallas range, as a local paper reports, was engulfed in a four alarm fire thanks to someone’s careless ammo choice (BTW, one “alarm” response is two engines, two ladder trucks, an ambulance, and the fire chief in my AO, and it took four times that to kill these flames). Be safe, and double check your ammo, mkay?
Image and story via Reddit.