Okay, realizing this is a few years old, I have been using the same setup for 30 years. We shoot Bianchi Cup style at 10, 15, 25 and 50 yards. I made a lexan template tombstone shaped and cut the rings out using a jig saw leaving one inch webs in the lines. I use Pilot brand V5 pens with the needle like tips to make the lines. Cardboard is cut out tombstone shaped 18x30 inches. Two 1/2"x5' rebar are used with spring clamps four on each target. I carry a machinsts hammer in my range accessory bag to pound the rebar in and keep the clips in there with other odds and ends. Using this setup, we can move our targets to any distance and we don't make toothpicks out of the range backstops, which are usually plywood around here. If you need a bigger target you just move one rod out and pound it in. I've used 4'x8' sheets of cardboard for long range rifle backstops and taped my targets to them. It helps if you grind points on one end of the rods.
Semper Fi