Comments by "mpetersen6" (@mpetersen6) on "How Is Ammunition Made? A Tour of Sellier u0026 Bellot's Factory" video.

  1. Progressive press operations are fascinating to watch. What you can see of it that is. Iretired out of an automotive plant. And no l won't say which one. At one time we did engine machining and assembly. Sheet metal stamping and body assembly. Rear axles and differentials. We had the stamped rocker arms that were fairly common at one time. There was one Tool and Die Maker whose job assignment was refurbishing the punches and dies for the rockers. One thing that impressed me was after going through the progressive operation the rocker arms ot a hole about .040/1mm punched through the pushrod seat. Bang, all the way through the seat in one operation. The seat was about 1/8th of an inch thick iirc.
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