Three of the 155mm/52-calibre K-9 tracked guns, which have a strike range of 38-km, have been taken to a base up the hills in Ladakh. NEW DELHI: The Army is now testing whether its new K-9 Vajra self-propelled howitzers can be effectively deployed in Ladakh, even as General M M Naravane inducted the last of the 100 such artillery guns ordered for Rs 4,366 crore from a joint venture of L&T and South Korean Hanwha Defence on Thursday. Three of the 155mm/52-calibre K-9 tracked guns, which have a strike range of 38-km, have been taken to a base up the hills in Ladakh to determine their suitability and efficacy for deployment in the high-altitude region.