火炮发射步枪子弹的次口径实验技术

介绍了一种利用25 mm弹道滑膛炮发射7.62 mm步枪子弹的次口径实验技术。利用绝缘胶木弹托解决炮口径远大于子弹弹径的问题，使25 mm滑膛炮易于发射小口径子弹；在子弹后端胶粘一小质量同直径绝缘胶木圆柱，改变弹丸整体质心位置，使质心相对靠前，从而改善子弹发射后的气动弹道特性，保证弹道姿态；在目标靶前分别设置前后阻挡板，以分离、阻挡弹托及弹托碎片，保证弹道实验无附加的碎片效应。

Experimental technique of an artillery launching a rifle bullet

An experimental sub-caliber technique of 7.62 mm rifle bullet launched by a 25 mm artillery is introduced in the present paper.A bakelite sabot is employed to fit the larger diameter of artillery for firing a smaller bullet.In order to ensure a bullet impacts in good appearance,a bakelite cylinder is stick to the rear bottom of the bullet to move its centroid forward.Two impediment plates are mounted before the target plate to separate the sabot and stop the sabot fragments,respectively.