Projectile Seating Depth Influence on a Small Arms Cartridge Performance
In the world of small-arms ammunition, precision reigns supreme. The most significant feature of ammunitionfor shootersis undoubtedly the repeatability from one shot to the next. This study exploresthe detailedassembly process of small arms cartridges, leveraging modern machinery and i...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Sieć Badawcza Łukasiewicz - Warszawski Instytut Technologiczny
2024-06-01
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| Series: | Technologia i Automatyzacja Montażu |
| Subjects: | |
| Online Access: | https://journals.prz.edu.pl/tiam/article/view/1694/1297 |
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| Summary: | In the world of small-arms ammunition, precision reigns supreme. The most significant feature of ammunitionfor shootersis undoubtedly the repeatability from one shot to the next. This study exploresthe detailedassembly process of small arms cartridges, leveraging modern machinery and innovative designs employed by cartridge manufacturers. It emphasizes how these tools ensure the fundamental repeatability and precision necessary for the quality of each batch of rounds. Establishing standards for the highest possible quality requires assessing the impact of imprecise cartridge assembly on ballistic performance.Utilizing a free-flight ballistic tunnel,a high-speed camera, light-and target-screen systems,the authors analyzed the effects of varying projectile seating depths thus affectingcartridge overall lengths (COAL) and cartridge base to ogive distance (CBTO) on the initialvelocity and shot dispersionat 50meters. The studywas conductedfor two types of projectiles, differingin theirogive profiles: secant and tangent ogive. The performance differences between these profiles provided valuable insights for future projectile designs, highlighting that low-drag projectiles are slightly more sensitive to the seating depth than tangent profile bullets, and the importance of it should be consideredin mass, military production as well. Itis avaluable resource for analyzing the trade-off between producing bullets with a low drag coefficient and ensuring high precision. Theresearch enhances the understanding of internal and external ballistics but most importantly draws attention to the importance of the standards of assembly processes to ensure optimal performance and safety in the field. |
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| ISSN: | 2450-8217 |