Gratuitously burning powder and making noise at a range. Not uncommon. Not necessarily helpful when it comes to skill-building, or assessing existing skills, but not uncommon.I have seen the results of guys shooting their 15-30rd mags at a single target, often 21ft away. I dont get it.
One of the various reasons why some skillset development drills start with shooters using down-loaded mags in some training range scenarios. More learning and assessment happening, than just making lots of noise.