Making Copper Bullet Jackets: Machining Punching & Drawing Dies! Part 6
Автор: NYC CNC
Загружено: 2013-09-23
Просмотров: 26633
This Video:
Precision boring the ID hole to 0.704" and then polishing! We want a mirror surface finish on the steel to help with die performance, so we need to experiment with ways of polishing (e.g. sandpaper, abrasive compounds) and then we need to determine how much material the polishing process removes so that we can maintain critical dimensions on certain polished parts!
This Series:
Having been a long time shooter and reloader, I am undertaking my next project for my new Emco V13 lathe: Making Copper Bullet Jackets. The process steps are to blank a copper coin out of a strip of copper, cup it, then draw it in to progressively longer and thinner-walled shapes. The goal in this project is to end up with a 9MM jacket which will be about 0.6" long and 0.352" in diameter. That jacket can then be used in a swaging system (e.g. Corbin) and combined with a lead slug to make an actual bullet!
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