Last summer I was at Rosebud shooting one bench over from Hugh Williamson. I had finished my pitiful string in a howling gale while Hugh just bided his time. He finally took about 10 seconds to shoot his string, which ended up either being a range record or at least close.
Anyhow, simultaneous video of the shooter (including the flags) alongside the target for one of these strings would easily beat anything in the rimfire video for sheer excitement!