Which statement accurately describes the M940 round?

Which statement accurately describes the M940 round?

• A. Electrically powered non-detonating tracer rounds
• B. Electrically primed self-detonating tracer rounds
• C. Mechanically primed self-detonating tracer rounds
• D. Electrically primed self-detonating non-tracer rounds

Answer: (B)

The M940 is designed as a tracer round that uses an electric primer to ignite the propulsion and fuze system, and it includes a mechanism that causes detonation automatically (self-detonating) rather than just burning or fragmenting without a timed or impact-triggered explosion. The electrified primer means reliable ignition in a variety of conditions without relying on a mechanical firing pin, which is important for consistency across rounds. The self-detonating aspect means the round delivers its explosive payload in a controlled way, rather than simply leaving a tracer trail or producing only a spark or glow. That combination is what makes it a tracer round with both visible tracers and an actual detonation, distinguishing it from non-detonating tracers, mechanically primed rounds, or non-tracer rounds.

The M940 is designed as a tracer round that uses an electric primer to ignite the propulsion and fuze system, and it includes a mechanism that causes detonation automatically (self-detonating) rather than just burning or fragmenting without a timed or impact-triggered explosion. The electrified primer means reliable ignition in a variety of conditions without relying on a mechanical firing pin, which is important for consistency across rounds. The self-detonating aspect means the round delivers its explosive payload in a controlled way, rather than simply leaving a tracer trail or producing only a spark or glow. That combination is what makes it a tracer round with both visible tracers and an actual detonation, distinguishing it from non-detonating tracers, mechanically primed rounds, or non-tracer rounds.