Analisis Kualitas Balistik dan Kimiawi Amunisi MU-1 TJ 9x19 mm Parabellum Setelah Perendaman Dengan Air Laut dan Air Sungai

Abstract

This study aims to analyze the effect of seven-day immersion in seawater and river water on the ballistic quality and chemical properties of MU-1 TJ 9×19 mm Parabellum ammunition. The background of the study is the operational requirement of the Indonesian Air Force (TNI AU) for ammunition to remain reliable even when exposed to aquatic environments during emergency landings or special operations. The research employed a laboratory experimental method with three treatments: immersion in seawater, immersion in river water, and an untreated control. After immersion, ballistic tests were performed to measure projectile velocity, shooting accuracy, and internal gas (chamber) pressure, and propellant ash content was analyzed as an indicator of chemical changes.The results indicate that seven-day immersion produced minor changes in ballistic performance, including a slight decrease in accuracy, small variations in chamber pressure, and an increase in inorganic residue in the propellant. Nevertheless, these changes were not significant from an operational standpoint, and the ammunition’s overall quality and reliability remained acceptable. The study underscores the importance of inspection and cleaning procedures for ammunition exposed to water prior to use.