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Experimental Validation of Internal Ballistic Mathematical Model for a Small Caliber Weapon

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  • Aleksa Aničić,
  • Vučko Vučković,
  • Luka Đorđević,
  • Lazar Blagojević,
  • David Tošić
Aleksa Aničić
University of Novi Sad, Technical Faculty „Mihajlo Pupin“, Zrenjanin, Serbia
Vučko Vučković
Technical Overhaul Works, Kragujevac, Serbia
Luka Đorđević
University of Belgrade, Faculty of Mechanical Engineering, Belgrade, Serbia
Lazar Blagojević
Agency for Testing, Stamping and Marking of Weapons, Devices and Ammunition, Kragujevac, Serbia
David Tošić
University of Kragujevac, Faculty of Engineering, Kragujevac, Serbia

Published 2026-01-25

Keywords

  • Initial velocity,
  • Barrel pressure,
  • Small weapon calibers,
  • Internal ballistic,
  • Experimental measurement

Copyright (c) 2026 Aleksa Aničić, Vučko Vučković, Luka Đorđević, Lazar Blagojević, David Tošić (Author)

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This work is licensed under a Creative Commons Attribution 4.0 International License.

How to Cite

Aničić, A., Vučković, V., Đorđević, L., Blagojević, L., & Tošić, D. (2026). Experimental Validation of Internal Ballistic Mathematical Model for a Small Caliber Weapon. Applied Research Advances, 2(1), 1-9. https://doi.org/10.65069/ara2120268
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Abstract

This paper examines the influence of barrel length on pressure and the initial velocity of the projectile. The theoretical analysis is conducted using the Drozdov analytical solution. An experimental method is used to investigate the ballistic characteristics of different barrel lengths from 720 mm to 600 mm, and also to validate the analytical results. The obtained deviations between analytical and measured values are less than 3.5%, 2%, and 6% for barrel maximum pressure, initial velocity, and firing time, respectively. The study findings show the reliability of the used model in determining internal ballistic characteristics for small-caliber weapons. 

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