一种新结构新颖的迫击炮已问世,其特点是在迫击炮的尾部设有较大的通孔,除发射瞬间外,膛内外气体始终能自由流通。其优点是:下滑速度大,有利于提高射速和发火可靠性,弹炮间隙可缩小,有利于提高密集度;连续射击时,冷空气能及时有效地直接冷 A new structure of a new mortar has come out, which is characterized by the tail of the mortar has a large through-hole, in addition to the launch of the moment, the bore inside and outside the gas has always been able to flow freely. The advantages are: the glide rate is large, which is favorable for improving the fire rate and ignite reliability, and the clearance of the projectile can be reduced, which is favorable for increasing the intensity; in continuous firing, the cold air can be directly and effectively cooled in time