2014 Paralympics | Biathlon | Men's 7.5km - Visually Impaired
The shooting starts at about 6:30.
http://www.teamusa.org/Video/2014/03/08/Sochi-2014-Paralympic-Winter-Games-Biathlon--Mens-75km--Visually-Impaired#ooid=Fxc2YybDpruqNZ_NuGs3azLtRI3YKyCs
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This blind shooter is listening for a high tone in the headset. When the tone peaks, he is on target and squeezes off the "shot" (a laser). The only thing better would be if they were using live rounds. This is in the above video after the 7:00 minute mark.
UL