Just watched an episode of Bones I heard that snipers often use Beta Blockers to calm their breathing prior to shooting. This draws my memory to an old game on the playstation in which the main protagonist uses diazepam to calm his nerves. Now I am not an expert marksman nor a sniper, I am a TA and a S**T shot at that but it sounded strange. Is drugging a sniper a done thing or is it just an interesting rumour for television and gaming purposes. to me it sounds a little odd as been under the influence of drugs would probably hinder an effective extraction? Just an interest question though so not getting an answer wouldnt be the end of the world.