Happened last time I was at Harvard Sportsman's Club. Two guys and a gal at the full auto range sent a round over their berm over my head towards the clubhouse. I tried to wave them over when I drove by on my way out, they just stared at me.
Also was present at a shooting in Roslindale about 7 years ago. Heard the bullets impact the brick wall before I heard the shots. Had my students eating dirt and then running for cover.
You should hear what a SABOT round sounds like coming out of an M1 Abrhams. First you feel the thud in your chest, then the percussion, then this whizzing/reciprocating sound. I might still have some videos somewhere.
The only time I had stuff flying over my head and charges blowing around me was during a night infiltration training in Ft. Knox, Ky. Tracers flying over head, barb wire to maneuver, crap blowing around you. Seems like a distant memory, but I still remember the tracers, and loud explosions.