100 metre running deer is a discontinued ISSF shooting event, that was part of the Olympic programme from 1908 to 1948 and of the ISSF World Shooting Championships programme from 1929 to 1962, when it was replaced by 50 metre running target. The original running target event, it was shot with centre-fire rifles from a distance of 100 metres, with the target moving sideways across a 20 metre wide opening. There were two versions: single shot and double shot. Occasionally combined competitions, with half the course fired single-shot and half double-shot, were held instead of or in addition to the others.
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