I shoot at AR500 only. Blowing chunks of hot steel from target somewhat of a fire hazard. I make sure no tall dead grass or junk is under targets. I use rubber straps cut from truck mud flaps & bolts/nuts/washers. Light weight plastic saw horses from Home Depot & 2X4, lag screws to hang targets.
Hitting 10 inches at 1,000 - not that easy & gives some appreciation of what happens after bullet leaves barrel & hits target. Fun to see steel jiggle way out there thru scope, recovery during TOF with light recoil. Shooting down silhouette chickens at 1,000 is a challenge. The .22-.250, 7.7 twist with 75 HELDM bullets is capable of doing this.