I purchased the Hawk camera to practice shooting my black powder cartridge rifles on steel. Using the video mode, without a spotter, one can shoot steel and get feedback to make corrections for the next shot. Before ordering the camera, I sent a few questions to customer service and received a prompt reply. Longshot has great service and fast shipping.
A couple of videos are attached from my first time testing the camera. The steel gong is at 421 yards - the cartridge is a .45-100 with a 570 grain lead bullet on the first shot and a 380 grain bullet on the last. Using the Longshot app takes some practice to review your shot but is easy. Your tablet needs to be shaded for optimum viewing while on the mat. This is a great system to get some practice trigger time.