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随着枪支的长期使用,枪支机件会逐渐磨损,枪管的内部形态会发生变化从而使得弹头上的痕迹也会出现变化,给检验鉴定工作带来很大困难。因此如何提高弹头上痕迹检验的精度和效果是提高枪弹痕迹检验技术的关键。为此笔者通过大量实验对54式手枪在不同时期的射击弹头上的坡膛痕迹和线膛痕迹进行了观察,测量以及分析,统计工作。从中获得了较有价值的数据,初步了解54式手枪射击弹头上的各种痕迹随着枪管磨损老化而变化的规律,提高了根据射击弹头痕迹区分发射枪种和认定发射枪支的成功率。
With the long-term use of firearms, the mechanical parts of the guns will gradually wear away and the internal shape of the barrel will change so that the marks on the bullets will also change, which brings great difficulties to the inspection and identification work. Therefore, how to improve the accuracy and effectiveness of the trace inspection on the bullet is the key to improve the inspection technique of the bullet trace. To this end, through a large number of experiments, I conducted observation, measurement, analysis and statistics on the bevel marks and the breech marks of the 54-type pistol at different stages of the shooting warhead. From which we can get more valuable data to get a preliminary understanding of the changes of various marks on the 54-type pistol’s projectile’s warheads with the aging of the barrel, and to improve the success rate of differentiating the type of firearm from that of launching a firearm based on the marks of the projectiles.