What is the main use of tracer ammunition?

Tracer ammunition is primarily designed to provide visual feedback on the projectile's trajectory during firing. This characteristic allows shooters to see the path of their rounds, which is particularly useful in training scenarios and certain tactical applications. The glowing trail left behind by tracer rounds assists shooters in making adjustments to their aim based on where bullets impact, thus enhancing accuracy and effectiveness in both training environments and combat situations.

Other uses of tracer ammunition include signaling and target identification in various military or operational contexts, making it a valuable tool beyond just training. The glowing effect helps indicate where rounds are landing without needing to rely on audible feedback or the potential delay in observing impacts from non-tracer rounds.