Just a word of warning is that AR500 has to be cut with a plasma cutter, not a torch to retain its properties. Its probably not an issue as most people buy it online pre cut, but If were to order a sheet of it be aware of the requirement.
i am telling you just suck it up and order this, beat mine up all weekend with the 200's and zero damage other than paint flying! i will also add the perfect holder is a highway work sign mount (big spring base, orange typically with 2 sign clamps) if your lucky enough to find one laying on the road abandoned.... you hit it and gongs, swings a little then steadys, perfect!
Im a Rum man to mtmuley !!
Im sure the steel at the range is heavy duty ...I have been smackin it with 210 noslers with no problem .
Go big or stay home !!