A method of manufacturing an improved lead-free primed rimfire cartridge for ammunition (12) or industrial powerloads (52) providing a gas source for driving fasteners with power-fastening tools. A lead-free priming mixture (80) is consolidated into an annular cavity (20) of a rimfire casing and dried in the cavity. The primer is secured in the cavity by tamping at least a portion of propellant (30) into the casing against and over the dried primer. The tamping pressure per casing may range from 1,300 psi to 8,800 psi (91.4-618.7Kgf/cm²). Any remaining portion of required propellant (90) is added over the tamped compacted propellant layer. The ammunition and powerload casings are then sealed and finished in a conventional manner. A rimfire cartridge for both ammunition and industrial powerload applications manufactured as described above is also provided.
一种用于弹药(12)或工业动力负载(52)的改进型无
铅底火弹壳的制造方法,为使用动力拧紧工具驱动紧固件提供气源。一种无
铅底火混合物(80)被加固到轮射弹壳的环形空腔(20)中,并在空腔中干燥。通过将至少一部分推进剂 (30) 捣入弹壳,使其与干燥的底火相抵并覆盖底火,从而将底火固定在空腔中。每个弹壳的夯实压力范围为 1,300 psi 至 8,800 psi(91.4-618.7 千克力/平方厘米)。所需的推进剂 (90) 的剩余部分将添加到夯实的推进剂层上。然后以传统方式对弹药和动力装填弹壳进行密封和加工。此外,还提供了一种按上述方法制造的用于弹药和工业动力装填的轮射筒。