The Remington Kleanbore .30-30 Winchester Express cartridges were a popular line of ammunition designed by Remington, featuring non-corrosive priming ("Kleanbore") and "Express" (high-velocity) loads for the .30-30 Winchester, which was introduced in 1895 as the first American small-bore smokeless powder cartridge. The .30-30 Winchester became iconic for lever-action rifles, while Remington's Express line offered improved performance, particularly for deer hunting, and was widely used throughout the 20th century