NRA 150: First Gold For American Riflemen | An Official Journal Of The NRA
The modern Olympics, as we know them today, started in 1896, and there were shooting events at the games as early as Athens in 1906. After all, the man who put the games together, Baron Pierre de Coubertin, was himself a French pistol champion. Neither the United States nor Great Britain sent rifle teams to Athens, but that changed for the 1908 Olympic Games in London.
Source: americanrifleman.org