The comparison of .50 Browning Machine Gun (BMG) armor-piercing incendiary (API) and armor-piercing incendiary tracer (APIT) projectiles centers on the inclusion of a tracer element in the latter. Both rounds feature a hardened penetrator designed to defeat armored targets and an incendiary compound to ignite flammable materials upon impact. The APIT projectile adds a pyrotechnic composition in the base that burns brightly during flight, allowing the shooter to visually track the bullet’s trajectory and adjust fire accordingly.
This seemingly small distinction carries significant tactical implications. The tracer element in APIT projectiles enhances accuracy in long-range engagements and suppressing fire by providing immediate visual feedback. This is particularly valuable in challenging conditions such as low light or against moving targets. However, the tracer also reveals the shooter’s position, a potential disadvantage in concealed operations. The choice between API and APIT therefore depends on the specific operational requirements and the balance between increased accuracy and potential exposure. Historically, both round types have seen extensive use in military applications, including heavy machine guns, anti-materiel rifles, and long-range sniper rifles.
