The extracting bullet force of authorized fixed loading shell is an important performance in shell design and assembly.

制式定装炮弹的拔弹力是炮弹设计和装配中需要控制的重要性能指标。

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When it was all over, shell casings littered his front yard and seven bullet holes were scattered across his home, including one in his living room that left his television shattered.

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Prosecutors said they collected at least 30 shell casings from a variety of weapons, including several bullet casings from an AK-47.

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