23 mm caliber rounds for GS23L 23 mm caliber rounds for GS 23 L airplane guns of following types: explosive incendiary, incendiary armor-piercing and training shells 30 mm caliber rounds for 2A42 30 mm caliber rounds for 2 A 42 gun of following types: explosive incendiary, incendiary armor-piercing and training shells with and without tracer)