“铜斑蛇”155毫米炮射制导炮弹,型号M712,现已批量生产,并定于八十年代初装备部队。半主动激光末端制导技术,使155毫米炮弹的命中精度提高到0.3—1米(圆公算偏 The “Copperhead” 155-mm artillery guided munition, model M712, is now in volume production and is scheduled to be equipped in the early 1980s. Semi-active laser end guidance technology, so that the hit accuracy of 155 mm artillery shells increased to 0.3-1 meters