Why .40S&W?

This is a discussion on Why .40S&W? within the Defensive Ammunition & Ballistics forums, part of the Defensive Carry Discussions category; I understand the need to differentiate between .357SIG and .357MAG, .38Special and .38Super, .45ACP and .45Colt.... But why .40 S&W when there isn't anything to ...

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Thread: Why .40S&W?

  1. #1
    New Member Array Sartori42's Avatar
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    Why .40S&W?

    I understand the need to differentiate between .357SIG and .357MAG, .38Special and .38Super, .45ACP and .45Colt....

    But why .40S&W when there isn't anything to differentiate it from? Can't we just call it .40? Must we continually pay homage to S&W?

  2. #2
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    Not sure. I'll think about it while I'm cleaning my .30-30 Winchester Center Fire.

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  3. #3
    Member Array Bruce2's Avatar
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    My guess would be because S&W developed the .40 , but what do i know, im just a poor ole white boy with a hi-point .45.

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    VIP Member Array Cuda66's Avatar
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    Well...

    Usually, folks do drop the S&W...just like they do when referring to .38 Special (technically .38 S&W Special).

    Can't quite figure out why it bothers you so when people don't.

    Would you like to talk about it?
    Ianthin, Taurahe, hdhnict and 4 others like this.
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    Member Array Concealed_in_KY's Avatar
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    The .40 S&W is a shortened 10mm.

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    Smith and Wesson made it... they can call it what they want. it is actually common for a the creator of a new cartridge to name it after themselves.... 30-30 Winchester center fire, 35 remington, 35 whelen,,,,,, and besides... "sparkly unicorn bad guy getter" sounds kinda girly when you ask for it by name at a gun store.
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    Senior Member Array hdhnict's Avatar
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    S&W wanted everybody to know they designed it.
    Just like Colt's name is on .45 Automatic Colt Pistol (.45 ACP). Credit should go to JM Browning, IMO.

    BTW, there is a .40 Super, .40 G&A, .40 G&A Magnum, and .400 CorBon.
    All of which COULD be confused, if you just said ".40 cal.". Not likely, but possible.
    Taurahe and oneshot like this.
    Really, I care about your opinion. It seems reasonable.
    Its just that I've ALREADY decided on something else!
    Hint: Its NOT a Glock.

  8. #8
    Senior Member Array nathanjns's Avatar
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    Sounds like you might be happier with something like the 9mm Parabellum.
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  9. #9
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    Quote Originally Posted by Taurahe View Post
    "sparkly unicorn bad guy getter" sounds kinda girly when you ask for it by name at a gun store.
    Hopefully the inventor of the SUBGG makes it a formidable round. If so, I will be the one at the store "Yep, go ahead get me a box of those Sparkly Uni's"
    Taurahe likes this.

  10. #10
    Member Array Captains1911's Avatar
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    This is really simple. The technically correct term for the cartridge is .40S&W, because as already stated, it was developed by S&W. Just like .45ACP, 9mm Luger, .45GAP, etc., ect. People shorten terms for convienience all the time, this is no different.

    Of course you won't find a 40 caliber Glock pistol manufactured in the last decade or so that has ".40S&W" stamped on it...they too have shortened it to ".40" for "convienience."

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    This weekend, I shot my .308 Winchester and my .30-30 Winchester (.30 WCF) rifles. I also shot my .45 Auto Colt Pistol (ACP), my .357 S&W magnum, and my .44 Remington magnum handguns.


    There are several 40 caliber rounds.

    .40 S&W (.40 Auto, .40 Short, 10x22 mm) .400 in (10.2 mm) .850 in (21.6 mm) 1.235 in (31.4 mm) Rimless Barnes 1997, p. 274
    10 mm Auto (10×25mm, 10mm Norma, 10mm F.B.I.) .400 in (10.2 mm) .990 in (25.1 mm) 1.260 in (32.0 mm) Rimless Barnes 1997, p. 274
    10 mm Magnum .400 in (10.2 mm) 1.255 in (31.9 mm) - Rimless "10 mm Magnum Data"
    .40 Super .400 in (10.2 mm) .988 in (25.1 mm) - Rimless -
    .40 G&A .400 in (10.2 mm) .866 in (22.0 mm) - Rimless [18]
    .40 G&A Magnum .400 in (10.2 mm) - - Belted [19]
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  12. #12
    Senior Member Array hdhnict's Avatar
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    That semi-haphazard, nearly random naming system for cartridges!
    For instance, .38 S&W Special uses a .357" dia bullet. But, can be fired in a .357 S&W Magnum (developed by Elmer Keith) or the .357 Remington Maximum. But, don't EVER put one in a .38 Long Colt, unless you want to ruin the gun!

    (Sarcasm off)
    Really, I care about your opinion. It seems reasonable.
    Its just that I've ALREADY decided on something else!
    Hint: Its NOT a Glock.

  13. #13
    Senior Member Array hdhnict's Avatar
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    Quote Originally Posted by Captains1911 View Post
    This is really simple. The technically correct term for the cartridge is .40S&W, because as already stated, it was developed by S&W. Just like .45ACP, 9mm Luger, .45GAP, etc., ect. People shorten terms for convienience all the time, this is no different.

    Of course you won't find a 40 caliber Glock pistol manufactured in the last decade or so that has ".40S&W" stamped on it...they too have shortened it to ".40" for "convienience."
    Convenience? Maybe.
    I bet they don't drop the GAP off THEIR .45 GAP. Do they drop the "Sig" off of .357Sig?
    Really, I care about your opinion. It seems reasonable.
    Its just that I've ALREADY decided on something else!
    Hint: Its NOT a Glock.

  14. #14
    Member Array Captains1911's Avatar
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    Quote Originally Posted by hdhnict View Post
    Convenience? Maybe.
    I bet they don't drop the GAP off THEIR .45 GAP. Do they drop the "Sig" off of .357Sig?
    Hence the quotations I used around "convienience." Of course Glock prefers not to stamp the initials of one if it's largest competitors on the side of their product.
    wsigl91 likes this.

  15. #15
    Distinguished Member Array flintlock62's Avatar
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    My H&K has 40 S&W on the slide. Doesn't bother me.

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