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Thread: 22lr rim. How do they do that ?

  1. #1
    Boolit Master BlackoutBuilder's Avatar
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    22lr rim. How do they do that ?

    Iíve been sitting here de-rimming 22lr basically all day and I had a question come to mind. How do they put the rim on the thing to begin with?
    NFA = [B]N[/B]ot [B]F[/B]reaking [B]A[/B]merican

    It would be less disrespectful to burn the flag than to put a thin blue line through the middle of it.

  2. #2
    Vendor Sponsor D Crockett's Avatar
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    I think that is a question that you will have to contact a factory that makes 22lr's.to find out how they really do it. now you got me wondering to. but I would think they have a press that does it. D Crockett

  3. #3
    Boolit Master
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    There's a video on youtube by 22plinkster at CCI factory but I don't think they show how rim is formed.

  4. #4
    Boolit Master

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    The case starts out as a larger cup and then formed to rim dia lengthening as it goes. Then the body is formed down to size and last is trim to length. This is done in a progressive die the case moving thru each station and finished cases dropping out the end of the die. These presses run fast and produce a lot of cases in an hour.

  5. #5
    Boolit Master BlackoutBuilder's Avatar
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    Thank you That makes perfect sense.
    NFA = [B]N[/B]ot [B]F[/B]reaking [B]A[/B]merican

    It would be less disrespectful to burn the flag than to put a thin blue line through the middle of it.

  6. #6
    Boolit Master
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    at federal we had a machine that was actually called a header. basically you got the drawn tube from another machine then they run it through the header which basically uses dies to form the heads/rims. drawn tubes are finished dimension, the head was added last, well before final anneal and washing.

  7. #7
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    Rcmaveric's Avatar
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    I just watched that YouTube video yesterday. I would love to work at that place. Would be our own best customer!
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    ~Theodore Roosevelt~

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Abbreviations used in Reloading

BP Bronze Point IMR Improved Military Rifle PTD Pointed
BR Bench Rest M Magnum RN Round Nose
BT Boat Tail PL Power-Lokt SP Soft Point
C Compressed Charge PR Primer SPCL Soft Point "Core-Lokt"
HP Hollow Point PSPCL Pointed Soft Point "Core Lokt" C.O.L. Cartridge Overall Length
PSP Pointed Soft Point Spz Spitzer Point SBT Spitzer Boat Tail
LRN Lead Round Nose LWC Lead Wad Cutter LSWC Lead Semi Wad Cutter
GC Gas Check