Check out Salute Targets:
https://www.salutetargets.com
By now at least tens of thousands of rounds for about a decade have been launched onto Salute steel targets mounted on their spring loaded target bases, which not only angle the plates downwards, but rock a bit when hit, which provides a bit of visual feedback as well as supposedly bleeding off more energy from the impact.
I shoot handgun rounds and buckshot on one side of the plate, and rifle rounds on the other side. The rifle rounds, mostly 5.56mm (both M193 and M855) and 7.62x39, shot as close as 25 yards, have definitely taken a toll on their side. The rifle side is heavily pitted and cratered. But the handgun/shotgun side (I have no problem shooting at this side as close as 5-7 yards) is as smooth as they were ten years ago.
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