Streak s exclusive patented technology allows the shooter to visually see the projectile s path towards its target. Streak rounds are non-incendiary they do not generate heat so they are safe to use in environments where traditional tracers are prohibited and can be a serious fire hazard. The results are game changing in many aspects for the consumer law enforcement and military. For indoor range use and nighttime shooting. Streak 44 Rem Mag 240 GR Total Metal Jacket Specifications: Ammo Inc Streak Visual Ammunition .44 Remington Magnum 240 Grain STREAK Total Metal Jacket Projectile Red Tracer Non-Incendiary No Heat Generation Brass Cased Boxer Primed Reloadable Cases Uses: Training Target Shooting and Plinking Muzzle Energy: 789 ft lbs Muzzle Velocity: 1217 fps