A funny story to hopefully add some joy: many years ago my FFA Chapter started a big game shooting match to raise money. We shot targets of course but we did it before the deer/elk seasons opened and ranges were set around those goals.
We built a running deer on a cable, roller and pulley system. The deer was life sized wood with a paper target over the vitals. Gravity and a push downhill from a risk adverse FFA kid started it running.
That's a great test, but even more realistic would be to have the target start/stop at random intervals.
