Beats shooting spots all the time. The ones I' ve shot were the Techno Hunts. We have a new shop around here that has about 20 or so pop up 3ds to shoot at. The 3D targets stand up in a random sequence and allow you 5 seconds or so to shoot before they fall back down again. Targets are spread out up to 30 yrds. I haven' t shot it yet but just might have to try it out today. I' m kind of bored today anyways.
Looks like the place I' m talking about has a website. Don' t seem to show the popup system real well, but heres the link for my WI. neighbors.
http://www.rangemastertargets.com/index2.ivnu