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公开(公告)号:US4359810A
公开(公告)日:1982-11-23
申请号:US112558
申请日:1980-01-16
CPC分类号: B21J5/12
摘要: Method of forming a cartridge chamber in the bore of a firearm barrel, which comprises driving into the bore of the barrel from the butt end thereof a mandrel of the surface configuration of the peripheral wall and mouth of the cartridge chamber, whereby the bore metal is squeezed into close form-fit with the mandrel, and then retracting the mandrel from the barrel bore.
摘要翻译: 在枪管筒的孔中形成暗盒室的方法,其包括从其对接端驱动筒的孔,其具有筒室的周壁和嘴的表面构型的心轴,由此孔金属是 挤压成与心轴紧密配合,然后从筒孔回缩心轴。