I've been thinking about having one constructed for a long time. What I want is a target that precisely shows my hits, even when shot at multiple times, and which does not require patching.
I was contemplating a classic IPSC target shape cut out from 10 mm metal, with the A,C, D zones further cut separate from each other. Then all three zones fixed to a frame, . eg via metal rods with preloaded springs, so when hit, each zone is able to vibrate or slightly cycle independent from others. Then some kind of a vibration sensor attached to each zone that transmits a signal to a digital display showing number of hits for each zone.
This may sound a bit sci-fi, but I'd really like to have something like this. Any experience with similar designs or other ideas allowing for auto scoring on a "paper" target for pistol shooting at distances from 7-50 yards?