One of the most enjoyable, pleasant shoots I ever participated in was a woods walk / trail shoot, whatever ya want to call it that was set on a ridge. All shots were downhill into a ravine and all shots were at reactive targets at randomly set and unmeasured distances. The close targets were on the ground, sheet steel rabbits, grouse, turkeys, foxes, that sort of thing and when hit, they fell. All of 'em had a cord run out to reset 'em. The longer distances, out to approx 200 yards were animal silhouettes and geometric shapes which rotated, then returned when hit. The pistol shoot was simply the close in rifle targets. All scoring was on the honor system and as prizes were not high value, cheating was not a problem. I actually won a pound of 2F which I traded off for a jimmyjohn of some healthful and nutritious skull varnish.
At another rondy, half of one's score was novelty shoots, eggs taped to strings swinging in the wind, soda crackers lined up in a saw kerfed 2x4, balloons tied to the branches of bushes and some others I can't remember. (I blame the skull varnish.)
So not all targets have to be paper or at known ranges.
Three Hawks