.40 S&W versus .357 Sig

.40 S&W versus .357 Sig

This is a discussion on .40 S&W versus .357 Sig within the Defensive Carry Guns forums, part of the Defensive Carry Discussions category; Is there any good reason for me to get the extra barrel for my P229 so I can fire .357 Sig rds? I notice that ...

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Thread: .40 S&W versus .357 Sig

  1. #1
    Senior Member Array rljohns's Avatar
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    .40 S&W versus .357 Sig

    Is there any good reason for me to get the extra barrel for my P229 so I can fire .357 Sig rds? I notice that several LE agencies settled on that rd I assume due to ballistics.


  2. #2
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    No, not really. If you just want something different to play with, sure. I think you will find you wasted money if you were to buy one.
    "Just blame Sixto"

  3. #3
    Senior Member Array rljohns's Avatar
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    Thanks SIXTO. I was wondering why an agency would pick that round. It seems like an obscure round. It was someones listing on here of the different agencies that started me wondering if I was missing something.

  4. #4
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    Its a great round, I like it. But, its really not all that different from a hot loaded 9 or 40. Ammo is fairly expensive and can be hard to find.
    "Just blame Sixto"

  5. #5
    Member Array gen3monte's Avatar
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    357 sig is fun to shoot but I wouldnt waste the money, i would buy more 40 ammo
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  6. #6
    Senior Member Array mr surveyor's Avatar
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    when bullets get scarce, we will all be buying cheap guns (anything you want) that can handle whatever ammo we can get our hands on. Personally, I want a handgun in every caliber, and a .357 barrel for my Sig P239 .40 cal IS on the "to do list"! It can't hurt to have in reserve.

  7. #7
    Senior Member Array rljohns's Avatar
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    Quote Originally Posted by mr surveyor View Post
    when bullets get scarce, we will all be buying cheap guns (anything you want) that can handle whatever ammo we can get our hands on. Personally, I want a handgun in every caliber, and a .357 barrel for my Sig P239 .40 cal IS on the "to do list"! It can't hurt to have in reserve.
    I get the logic from a last person standing point. But I guess if I'm set up for re-load on a .40 S&W i would be GTG.

  8. #8
    Ex Member Array Sneaky's Avatar
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    The 357 Sig round was tested by several law agencies and found that this round could penetrate a car better then 40 caliber or 45 caliber! This is one round I would not use for home defense because of penetration issues!

    Semper Fi Brother & Happy New Year!

  9. #9
    VIP Member Array pogo2's Avatar
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    Compare ballistics

    One of the "standard" .357 Sig loads is the Federal 125 grain JHP, which has a muzzle velocity of 1350 fps and muzzle energy of 506 ft-lbs, according to the Federal Ammunition website.

    You can closely duplicate this in .40 caliber by selecting a lightweight .40 bullet, such as the Corbon 135 grain JHP, which has a muzzle velocity of 1325 fps and muzzle energy of 526 ft-lbs, according to the Corbon Ammunition website. The .40 bullet has a slightly larger diameter than the .357 Sig bullet, of course.

    I can't see much point in the .357 Sig if you can have the same effect in your .40 caliber gun by choosing the right ammo. And the .40 practice ammo will be cheaper and more readily available than the .357 Sig.
    Firearms are second only to the Constitution in importance; they are the Peoples' Liberty's Teeth." - George Washington

  10. #10
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    ...and the .357 Sig is LOUD!

  11. #11
    Member Array gen3monte's Avatar
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    Quote Originally Posted by pogo2 View Post

    I can't see much point in the .357 Sig if you can have the same effect in your .40 caliber gun by choosing the right ammo. And the .40 practice ammo will be cheaper and more readily available than the .357 Sig.
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  12. #12
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    I wouldn't get one thinking it was better than the .40. I'd prefer the .40 for myself.

    For handloading fun and tinkering I'd think that adding the .357 SIG would be great though and I'd probably do it.

    Gotta get my first .40 though.

  13. #13
    Member Array rathos's Avatar
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    I used to absolultely hate the .40 round. I thought there was too much recoil and follow up shots were near impossible. I then purchased a sig 226, with both .40 and .357 sig barrels. I started the day by shooting .357, about 300 rounds. I then switched barrels and the .40 recoil was extremely tame compared to the .357. I have to now say the .40 is one of my favorite guns to shoot. Its also quite a bit less expensive. 50 rounds of .357 sig is 19.99. 50 rounds of .40 S&W is 12.99. About the only thing I can really see that is an advantage is .357 sig does not drop as much as the .40 S&W and I can hit clay pigeons and pop cans at 100 yards fairly easy with it. But in reality, if you are using a pistol at a hundred yards why not just run, or get a rifle!
    ‘‘To disarm the people is the best and most effectual way to enslave them.’’

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  14. #14
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    Unless you love to spend $$$ why use two types of ammo (two barrels, too) for the same gun? I'd rather have an extra gun! OMO

    Stay armed...have two guns...stay safe!
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    VIP Member Array Supertac45's Avatar
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    Agree with SIXTO. I'd skip it unless it's a must have for you.
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