"The 30mm x 173 GAU-8/A ammunition was among the most effective ammunition used in Operation Desert Storm with proven performance against all targets, including tanks, armored and light vehicles. The 30mm lightweight family of ammunition was developed to optimize the air-to-ground mission of the U.S. Army AH-64 Apache helicopter. This ammunition family is also compatible with all 30mm x 113 gun systems. The PGU-13/B HEI High Explosive Incendiary round employs a standard M505 fuze and explosive mixture with a body of naturally fragmenting material that is effective against lighter vehicle and material targets. Sources and Resources."