According to the video, this was done back in 2011. They are testing a sustainable steel target against a 105mm HE round.
I am not familiar with artillery but they seem to miss a lot. Also on what basis is this target sustainable? Sure it took a few hits however they were all hit in different areas. How well would this target be able to take multiple hits in the same spot? What targets do artillery usually practice shooting at and are they not usually this robust?
The slow motion of the HE round is fun to watch.