Effect of caffeine ingestion on competitive rifle shooting performance.

Purpose: The purpose of the present study was to test if caffeine ingestion affects rifle shooting accuracy in trained shooters.

Methods: Twenty trained shooters performed 4 shooting tests in a randomized, double-blinded, placebo controlled crossover design; 2 identical tests after placebo ingestion and 2 after ingestion of 300 mg caffeine. The tests consisted of 30 shots in prone position and 30 in standing position on a 10 ring electronic target, on a distance of 50 metres, without any time limit, at rest.