Abstract: A ballistic impact indicator, for alerting a marksman that a bullet has struck a target, includes a vibration sensor mounted to an adjustable clamp for removably securing the vibration sensor to target board. The vibration sensor is electrically coupled by a connector cable to a controller circuit for operating a xenon flash tube strobe light. In response to a detection of an impact by the vibration sensor, the controller circuit generates a delayed trigger signal, the delay of which can be selected by the user between approximately 2 and 6 seconds, for triggering the strobe light. The controller circuit also causes the strobe light to flash repeatedly if either the vibration sensor or connector cable are hit by a bullet. The sensitivity of the vibration sensor is adjustable in accordance with the energy of the bullet and wind conditions. The strobe light and controller circuit are powered by a rechargeable storage battery to provide a portable unit.