| August 3–5|| 30 from 6 nations|
The 300 metre free rifle prone event was one of five military rifle events of the competitions in the Shooting at the 1900 Summer Olympics events in Paris. They were held from August 3 to August 5, 1900. 30 shooters from 6 nations competed, with five shooters per team. Medals were given for individual high scores in each of the three positions, overall individual high scores, and the scores of the five shooters were summed to give a team score.
Shooting at the 1900 Summer Olympics – Men's 300 metre free rifle, prone Wikipedia
Each shooter fired 40 shots, for a total possible of 400 points.