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建立利用颅骨枪弹创骨折类型推断射击方向和顺序的方法。使用国产五四式7．62mm口径手枪及五六式7．62mm口径半自动步枪，以3m的距离2次射击16具尸体的头颞部及枕部，造成颅脑贯通创，制成颅骨枪弹射入、出口各32例，并根据定位标记进行观察。结果显示：颅骨枪弹创骨折形态可分为带有斜面的孔状骨折，锁孔状骨折，放射状骨折和环状隆起骨折4种类型，其出现多见于低速枪射击，并与射击方向和顺序有直接关系。根据颅骨枪弹创骨折类型可推断射击方向和顺序。
To establish a method of inferring the firing direction and order by using skull bullets to create fracture types. The use of domestic May Fourth 7.62mm caliber pistol and 7.6 caliber 7.62mm semi-automatic rifles fired at a distance of 3m twice 16 heads of the body of the head and the occipital, resulting in cranial brain through the wound, made of skull gunshot Into and export of 32 cases, and according to the positioning markers were observed. The results showed that the morphological characteristics of skull gunshot wounds can be divided into four types: perforated fractures with oblique surfaces, keyhole fractures, radial fractures and annular protuberance fractures, which were more common in low-speed gunshot shooting and were related to shooting direction and order Direct relationship. According to the type of skull bullets can be deduced fracture shooting direction and order.