Which type of ammunition is designed to be used against light materials and personnel and for range training?

The M80 ammunition is specifically designed for use against light materials and personnel, making it suitable for a variety of combat and training scenarios. This ammunition features a full metal jacket, enabling it to maintain its structural integrity upon impact while providing adequate penetration against soft targets. Additionally, its widespread use in military and range training ensures that personnel become proficient at handling and firing this type of round in various environments.

The other types of ammunition listed are generally not intended for the same applications as the M80. The M62, for example, is tailored for armor penetration, while the M85 is an empty cartridge with a different focus. The M118 is more specialized for marksmanship training and precision shooting with accuracy in mind. Thus, the M80 is clearly the most appropriate choice for the specified purposes of engaging light materials and personnel along with suitability for range training.