We have a new target frame that has replaced the swingsets - sort of based from the swingset idea only no bolts or even chain. I have jpegs of the setup and could send to someone to post here if you guys wish. The frame is self supporting and cheap - legs are angle-iron, only a small bit of welding to make the top assembly. Sets up in about two minutes and takes a beating. When you shoot up the legs you just replace with another piece of angle iron.
Used to use a similar rig made of sawhorse brackets and cheap 2"x4"'s but this steel rig is much tougher, no sharp pieces of shrapnel in the wood to worry about. Gave up on wood frames last year and don't miss the sharp pieces of jacket - **** things can be like razors.
Another great LR target is simply made by welding two 12" or whatever lengths of angle iron along one side of a 12" or whatever length square of 1/2" steel plate (my targets range from 12x12 to 16x16). Weld the pieces on each side so that you form an upside down T. Idea is that they freestand and fall over when hit. We do not shoot them closer than 600 yards since this is just mild steel. Makes lots of interesting shooting when you put two in front with a six inch space between them and another a couple of feet behind - you have to shoot the back one first naturally. I am not sure how many of these we have, about 15 or more and they are excellent. They can be braced so that they don't fall over but more fun to "kill" them.
I also have a dozen or so 2'x4' plates, ranging from 1/4, 3/8 and 1/2 inch thickness. We just drill a 1/2" hole in two corners so we can insert "S" hooks to hang them on our frames. With the new angle-iron frames we quit using chain, one less thing to get shot-up. The frames are height adjustable by simply moving the legs in or outward so we can hang the plate as low to the ground as possible - this is best for seeing low misses.
We shoot the steel a lot during our few days of summer - too **** cold to enjoy shooting these days but hoping for a break so we can shoot some drops on some new rifles.
Simpler is best for targets and frames. Buy lots of white spray paint - found that the real cheap paint deals are useless, better to spend a bit more and get good paint.
Also have pictures of a 14' tall wooden frame we use for shooting LR groups on paper - this is the best way to determine what your actual drops are. Before the recent deer season we moved firing location 17 times to get the drops we wanted for our .308's and they worked very well when we started killing deer. Lost count of how many 500 - 600 yard kills we did this fall - free CWD tags helped a lot...
A farmer friend that we got into LR hunting this winter just made two 700 yard kills a couple of days ago. He bought a new Stealth and some factory 168 Win. Ballistic Silvertips. Told him to put the top of the post of his 2.5-10 Nikon tactical on the backline - two one-shot kills. We created another monster - he has the bug now
He also killed a bunch of deer out past 500 with Black Hills Match 175's, they worked perfectly and killed fast.