Hlavaty Leigh, Amley Jeffery, Root Kelly, Avedschmidt Sarah, Jaworski Andrea, Sung LokMan
Wayne County Medical Examiner's Office, 1300 E. Warren Avenue, Detroit, MI.
Department of Pathology, University of Michigan, 1301 Catherine Street, Ann Arbor, MI.
J Forensic Sci. 2020 Mar;65(2):500-507. doi: 10.1111/1556-4029.14181. Epub 2019 Sep 4.
When interpreting firearm injuries, the distinction between gunshot wounds and shotgun wounds is important, and separation of these categories is typically straightforward. However, .410 bore firearms can make the classification difficult. Shotguns and revolvers that can fire the same .410 bore ammunition are readily available. This study investigates the soot and gunpowder deposits and pellet patterning of these two types of weapons using cartridges specially designed for .410 bore revolvers and standard birdshot pellet ammunition. For both ammunition types, the revolver had more prompt pellet dispersion and positive detection of gunpowder at greater distances compared to the shotgun. Additionally, .410 bore slugs are of similar caliber to many common bullets. In comparing the .410 bore slugs to equivalent bullets, some morphologic differences may be imparted on the skin by the slugs, but the greatest insight into the weapon remained with the retained projectiles.
在解读火器伤时，区分枪伤和霰弹枪伤很重要，而且通常很容易将这两类伤口区分开来。然而，.410口径的火器可能会使分类变得困难。能够发射相同.410口径弹药的霰弹枪和左轮手枪很容易获得。本研究使用专门为.410口径左轮手枪设计的弹药筒和标准猎鸟弹丸弹药，对这两种武器的烟灰和火药沉积物以及弹丸分布情况进行了调查。对于这两种弹药类型，与霰弹枪相比，左轮手枪的弹丸散布更快，并且在更远的距离能检测到火药。此外，.410口径的弹头与许多普通子弹的口径相似。在将.410口径的弹头与同等子弹进行比较时，弹头可能会在皮肤上留下一些形态差异，但对武器的最大洞察仍来自留在体内的射弹。
