Investigation of the impact of a sound suppressor on the weapon's memory effect and gunshot residue formation.

Osnat Israelsohn Azulay, Yigal Zidon, Esti Kohalsky
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Abstract

The firearm's memory effect describes circumstances where particles from previous firing cycles are deposited with or incorporated in the new ammunition debris. Even though this phenomenon is well studied, the influence of a sound suppressor on the strength of the memory effect and its extent has not yet been investigated. In this study, the SINOXID-type ammunition barium, antimony lead with added aluminum (BaSbPbAl) primer mixture, was initially fired, followed by firing ammunition with classic SINOXID primer composition BaSbPb. Thirty bullets were test fired with and without a suppressor, accompanied by sample collection in predetermined shooting intervals. The results of the present study demonstrate that the memory effect was significant even after 30 shots of the latter classic SINOXID ammunition, both with a suppressed pistol or unsuppressed pistol, and that the proportion of the particles not compatible with the primer composition was unequivocally pronounced when using a suppressed pistol. Moreover, shooting a suppressed pistol affects the total amount of gunshot residue found on the shooter's hands; thus, it should always be considered in reconstructions of shooting incidents. Explanations for this phenomenon are offered.

消声器对武器记忆效应和枪弹残余物形成影响的研究。
枪支的记忆效应描述了以前射击周期中的颗粒沉积在新弹药碎片中或与之结合的情况。尽管这一现象已经得到了很好的研究,但抑声器对记忆效应强度及其程度的影响尚未得到研究。在本研究中,首先发射了sinoxd型弹药钡,锑铅加铝(BaSbPbAl)底火混合物,然后发射了经典sinoxd底火成分BaSbPb的弹药。30发子弹在带和不带消声器的情况下进行了测试,并在预定的射击间隔内进行了样品收集。本研究的结果表明,即使在用压制手枪或未压制手枪射击30次后,后一种经典SINOXID弹药的记忆效应仍然显著,并且在使用压制手枪时,颗粒与底火组成不相容的比例是明确明显的。此外,射击被压制的手枪会影响在射击者手上发现的射击残留物总量;因此,在重建射击事件时应始终考虑到这一点。对这一现象给出了解释。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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