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Author Topic: Spinning Cases  (Read 1425 times)

Splodge Of Doom

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Spinning Cases
« on: August 03, 2014, 03:49:30 pm »
I wasn't sure if this would be better here or in the gunsmithing subforum.

I've come across several references to people producing brass by spinning, as opposed to the usual stamping/drawing method. I got the impression it was done a bit by the resistance in WW2.

I'm familiar with metal spinning in general, for things like trumpets or aluminium cookware, but I'm particularly interested in how they manufactured brass with it.

Anyone know anything about this? All google throws up are people with crimping issues...

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    StevenTing

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    Re: Spinning Cases
    « Reply #1 on: August 05, 2014, 05:13:36 pm »
    I had no idea.  I was only familiar with the stamped process.
    Utah

    JesseL

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    Re: Spinning Cases
    « Reply #2 on: August 05, 2014, 05:20:05 pm »
    I've heard of brass being turned from solid bar stock on a lathe, usually for prototypes of cartridges with no direct parent.
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    only1asterisk

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    Re: Spinning Cases
    « Reply #3 on: August 23, 2014, 11:18:57 am »
    Brass spinning is sometimes still use to lengthen cases.  However, the results are generally unsatisfactory as far a consistency goes. esp. neck thickness.  The BPCR have the most recent experience in case spinning with the cases for their larger cartridges being difficult and expensive to obtain until fairly recently.  I've never done it.

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