针对坦克高射机枪在500 m距离校正后，对一些空中目标射击时射程较近而不能发挥最大威力这一问题，利用真空中外弹道方程式，推导出高射机枪对空中目标射击时射击斜距离与枪目高低角之间的变化关系，得到高射机枪在500 m距离上校正后在不同枪目高低角下射击时的斜距离，并以此分析高射机枪在500 m距离上校正后对空射击时的不足，提出一般情况下采取700 m距离校正及当主要射击敌直升机时采取800 m距离校正的观点。实弹射击结果表明：该校正距离能明显提高坦克高射机枪对空射击命中概率，充分发挥其对空射击效能。
In order to solve the problem that the tank antiaircraft machine gun can not exert its maximum power because of its short range when shooting at some air targets after 500 m range correction, uses the vacuum external ballistic equation. This paper deduces the relationship between the firing oblique distance and the elevation angle of the anti-aircraft machine gun when firing at the air target, and obtains the oblique distance of the anti-aircraft machine gun when firing at the air target at different elevation angles after correction at the distance of 500m, and analyzes the deficiency of the air-firing of the anti-air machine gun after correction at the distance of 500m. The viewpoint of adopting 700m range correction in general and 800m range correction when mainly shooting enemy helicopters is put forward. The live firing results show that the correction distance can significantly improve the air firing hit probability of tank anti-aircraft machine gun and give full play to its air firing effectiveness.