Howdy Popcorn,
Nice range. I keep forgetting that y'all have to shut down for the winter. I guess that's a good time to get a year's worth of reloading done!
Your "Open Range" category is called Sharpshooter around these parts. Several clubs offer it, with the rifle targets ranging from around 15-20 yards at a club with a rear berm to 50-ish yards or more at the clubs that use those targets for Cody Dixon (including Plum Creek where you shot recently). It is a nice alternative for folks that want a little more accuracy challenge.