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.223 Remington is to 5.56x45 .......

Discussion in 'Handloading and Reloading' started by Jim Bowie, Dec 9, 2019.

  1. Jim Bowie

    Jim Bowie Member

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    Just making a list of similar cartridges.
    Another one would be 7.62x25 and .30 Mauser.
    Just a fun mental exercise...
     
  2. earlthegoat2

    earlthegoat2 Member

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    This list is going to get real long.....

    9mm Luger
    9mm NATO
    9mm Parabellum
    9x19
    There’s a few more

    Now who wants to try .380?
     
  3. the Black Spot

    the Black Spot Member

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    380 = 9mm short?
     
  4. entropy

    entropy Member

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    9mm Corto, 9mm Kurz.
     
  5. earlthegoat2

    earlthegoat2 Member

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    Yes and yes along with:

    380 Auto
    380 ACP
    9x17
    9mm Browning
     
  6. DukeConnor

    DukeConnor Member

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    9x19 = 45 ACP
     
  7. Carl N. Brown

    Carl N. Brown Member

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    Actually 45 ACP = 11.43×23mm.
    .
    .
    ,
    (trying to appear serious about it)
     
    Demi-human likes this.
  8. troy fairweather

    troy fairweather Member

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    7mm mauser = 7x57= 275 Rigby
     
  9. brasscollector

    brasscollector Member

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    I was waiting for someone to chime in with an example of the english vs european designations. I think a person could write an encyclopedia on those.
     
  10. edwardware

    edwardware Member

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    .358 Winchester == 9.1x51mm. But you have to be French or better to say it with a straight face.

    I've tried that. They won't even feed from the magazine.

    Now .380 Court works in a 9x19 most of the time, and 9x19 works in a .40 Short'n'Weak surprisingly often.
     
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  11. Jerry M

    Jerry M Member

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    While the same outside dimensions of both sets of cartridges: 7.62x25 - .30 Mauser; 5.56X45 - .223 Remington; both are loaded to different pressures and NOT necessary interchangeable. 7.62x25 and 5.56X45 are normally loaded to higher pressures.

    Good Luck

    Jerry
     
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  12. entropy

    entropy Member

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    Why does this fallacy pop up all the time?

    THIS is why firing 5.56 in a .223 chamber is not a good idea:
    223 vs 5.56.jpg
    With thanks to Gunny for posting it in the first place.

    You are correct about 7.62 Tokarev.
     
    Jim Bowie and stillquietvoice like this.
  13. TikkaShooter

    TikkaShooter Member

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    What you stated is spot on, period.

    Any thoughts or opinions on the Wylde chamber? I have a couple of Barnes BPMs with the Wylde chamber which are really quite accurate with either .223 or 5,56.
     
  14. entropy

    entropy Member

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    The Wylde chamber is the best compromise between 5.56 and .223; still accurate for precision work, and can digest 5.56 without a hiccup or worries about pressure. When I get a 16" or 20" upper for my AR pistol, it will have a Wylde chamber.
     
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