@article{zhang_xu_2024,  title={The influence of deviation in the centroid and entry angle of the bullet on its motion inside the barrel},  volume={21},  ISSN={1679-7825},  url={https://doi.org/10.1590/1679-78258060},  DOI={10.1590/1679-78258060},  number={9},  journal={Latin American Journal of Solids and Structures},  publisher={Individual owner},  author={Zhang, Xiaoyun and Xu, Cheng},  year={2024},  pages={e561} }