The influence of the bullet shape on the width of abrasion collars and the size of gunshot entrance holes

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• 作者：Rebecca Pircher ; Demet Preiß ; Stefan Pollak…
• 关键词：Abrasion collar ; Gunshot entrance hole ; .38 Special cartridges ; Bullet design ; Round nose ; Wadcutter ; Truncated cone
• 刊名：International Journal of Legal Medicine
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：131
• 期：2
• 页码：441-445
• 全文大小：
• 刊物类别：Medicine
• 刊物主题：Forensic Medicine; Medical Law; Medicine/Public Health, general;
• 出版者：Springer Berlin Heidelberg
• ISSN：1437-1596
• 卷排序：131

文摘

To investigate if there is any correlation between the bullet design and the respective dimensions of the abrasion collar and the skin defect in gunshot entrance wounds, experimental studies were performed on dyed pig skin. For the test shots, .38 Special revolver cartridges with three different bullet designs (round nose, wadcutter, and truncated cone) were used. With the help of an image editing program in combination with an image analyzing system, the area size of the abrasion rings and the skin defects was calculated automatically. The measured values differed significantly depending on the bullet type: the abrasion ring areas were largest in shots with round nose bullets and smallest with wadcutter projectiles. With regard to the entrance hole size, the relationship was inverse. The results are discussed with reference to the pertinent literature concerning the dynamic interaction between bullet and skin.