霰弹膛口问题高速摄影实验研究

通过膛口高速摄影方法研究１２ 号口径７ 号半霰弹从全喉缩与无喉缩２ 种膛口射出后弹子及弹托的飞行状态，结果表明，霰弹的初速约为５００ ｍ／ｓ，弹子飞出膛口后，随着弹子飞离枪口距离的增大，弹子间逐渐散开，且沿飞行方向的散开程度远大于沿侧向的散开程度。对相同密度与质量的射弹，膛口锥度愈大，弹托对弹子散布的影响就愈大。

The Experimental Study on Shots at Muzzle by Use of High-speed Photography

The 712 shots and the wad muzzle flying status of a shotgun shell from a full choked and a cylinder choked 12 caliber barrel will be studied by use of high speed photography in this paper. The results indicated that the initial flying speed of the shots is about 500 m/s. When the shots are out of the barrel, the distances between shots will gradually increase along with the shots flying farther from the muzzle, and the shots scattering degree in the flying direction will be far greater than the shots scattering degree in the lateral direction. For shots with the same density and mass, the larger the taper of the choke, the greater the influence of the wad on the shots dispersion.