The Springfield M1903 is a bolt-action rifle that was adopted by the United States military in 1903. It was designed to replace the earlier Springfield M1892 and was known for its accuracy and reliability. The rifle was chambered for the .30-06 Springfield cartridge, which became a standard round for the U.S. military. The M1903 saw extensive use during both World Wars and the Korean War. It was favored by many marksmen and snipers due to its precision. Various models and modifications were produced over the years, including the M1903A3, which featured a simpler sighting system and improved manufacturing techniques.