This Federal American Eagle Ammunition is genuine Lake City Ammunition Plant overrun ammunition. This tracer ammunition is loaded to military specifications and is perfect for providing the shooter with immediate feedback through trajectory visualization by allowing the bullet path to be seen. Tracer ammunition is a great choice for banging away at steel targets, casual plinking, and high-volume blasting sessions. The military uses tracer ammunition as an efficient tool for signaling. They are effective for use as pre-arranged signals between units and individuals; they also can be used to designate targets. As tracers burn very bright and very hot they may catch surrounding vegetation on fire, so they should only be used where there is a limited chance of the shooter starting a fire. This ammunition is loaded with a delayed ignition tracer meaning it will not ignite for 50-100 yards. This means the tracer is not burning up barrels prematurely causing damage to expensive firearms. This ammunition is new production, non-corrosive, in boxer-primed, reloadable Lake City brass cases.

When used, tracers are usually loaded as every fifth round in machine gun belts, referred to as four-to-one tracers. Platoon and squad leaders will load some tracer rounds in their magazines or even use solely tracers to mark targets for their soldiers to fire on. Tracers are also sometimes placed two or three rounds from the bottom of magazines to alert shooters that their weapons are almost empty. During World War II, aircraft with fixed machine guns or cannons mounted would sometimes have a series of tracer rounds added near the end of the ammunition belts, to alert the pilot that he was almost out of ammunition.

However, this practice similarly alerted astute enemies that their foes were nearly out of ammunition. More often, however, the entire magazine was loaded four-to-one, on both fixed offensive and flexible defensive guns, to help mitigate the difficulties of aerial gunnery. Tracers were very common on most WWII aircraft, with the exception of night fighters, which needed to be able to attack and shoot down the enemy before they realized they were under attack, and without betraying their own location to the enemy defensive gunners. The United States relied heavily on tracer ammunition for the defensive Browning M2 .50 caliber machine guns on its heavy bombers such as the B-24 Liberator.