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由于西方国家还装备12.7毫米机枪,用以防空和对付轻型装甲车辆,为此,挪威劳福斯公司研制了MP/NM 140枪弹,通过高爆效应和穿甲后的燃烧效应这两个方面来增加12.7毫米机枪的有效性,使该机枪更为完善。这种新枪弹的主要特点是具有与美国0.50英寸口径的 M8枪弹相同的内、外弹道,并且在贯穿目标时没有任何提前的由破片引起的高爆或燃烧效应。劳福斯的 MP/NM 140枪弹具有与原有美国弹药相同的弹壳、底火、炸药、被甲、大小、重量和膛压。引起高爆和燃烧效应的配料是装在枪弹的铜被甲内的,这些配料与目标相互作用就引起侵彻、爆炸和燃烧这三种成功的
As Western countries also equipped with 12.7 mm machine guns to defend against light and deal with light armored vehicles, for this purpose, the company developed the MP / NM 140 bullets through its high explosive effect and the fire effect after armor piercing Increase the effectiveness of 12.7 mm machine gun to make the machine more complete. The main feature of this new cartridge is that it has the same internal and external ballistic trajectories as the 0.50-inch M8 cartridge in the United States and does not have any advanced high-explosive or burning effects caused by the fragments throughout the target. The Lovos MP / NM 140 cartridge has the same shell, primer, explosive, armor, size, weight and chamber pressure as the original U.S. ammunition. The ingredients that cause high explosions and the effects of combustion are contained within the bullet-coated copper, and these ingredients interact with the target to cause three successful types of penetration, explosion and combustion