If hanging steel, one shot will shred the PVC. Same idea with a t-post, or even angle iron, 10 lbs of concrete, and a 18" piece of 1/4"-1/2" rebar welded to the top and you can hang rings wherever you want. Could probably also use threaded bar stock for the horizontal and thread several targets. If you drill through the angle iron, you could probably add more integrity than just welding it on top. Could also add more horizontals, have the outside of the angle facing forward so if you do miss, it will deflect rather than funnel. Weld a big nut on top, then you can thread a bolt through the nut and tighten it down to hold paper targets with a cardboard or plywood backing, just drill a hole in 12"x12" plywood for target backs and you have 4 plates and one paper target all on the same stand.