公开(公告)号：US20140130699A1

公开(公告)日：2014-05-15

申请号：US14041648

申请日：2013-09-30

Applicant: Alliant Techsystems Inc.

Inventor： Bryan P. Peterson ,  Drew L. Goodlin ,  Erik K. Carlson ,  Lawrence P. Head ,  John W. Swenson ,  Sharon Jones

IPC: F42B30/02 ,  F42B14/00 ,  F42B12/76

CPC classification number: F42B30/02 ,  F41A3/00 ,  F41A3/58 ,  F41A9/375 ,  F41C7/00 ,  F41C7/11 ,  F41C9/08 ,  F41C9/085 ,  F42B5/38 ,  F42B8/04 ,  F42B12/76 ,  F42B14/00

Abstract: A bullet system including a bullet body with a tail portion engaged with a polymer cup that provides enhanced engagement of the barrel upon firing. The bullet system may have a radial retracted state that corresponds to an elongated axial state of the bullet system that allows the cupped bullet to be fed down the barrel at a reduced diameter with reduced engagement with the barrel. The radial expansion of the bullet system occurs upon axial length reduction of the bullet system by axial compression. The axial compression can occur upon firing of the propellant or when loading with the ramrod. The bullet system can provide a tactile seat force indicator tip insert within the tip of the bullet body that provides a tactile sensation when the bullet is properly seated against the propellant charge. A cutting edge may be provided for scraping the barrel upon insertion of the bullet.

Abstract translation: 一种子弹系统，包括具有与聚合物杯接合的尾部的子弹体，其在烧制时提供枪管的增强的接合。 子弹系统可以具有对应于子弹系统的细长轴向状态的径向缩回状态，其允许以稍微减小的与筒的接合的直径减小的筒状子弹向下送入筒体。 子弹系统的径向膨胀发生在子弹系统通过轴向压缩的轴向长度减小时。 轴向压缩可以在推进剂燃烧时发生，也可以在用ramrod装载时发生。 子弹系统可以在子弹身体的尖端内提供触觉座椅力指示器尖端插入物，当子弹适当地抵靠推进剂装料时提供触觉。 可以提供切割边缘，用于在插入子弹时刮擦筒体。