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G23 .40 cal. vs. .357 Sig

Discussion in 'General Glocking' started by Lester R. Britton, Mar 4, 2010.

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  1. Lester R. Britton

    Lester R. Britton

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    They say there's no such thing as a stupid question unless you've been told the answer before; so here goes...why would you change your .40S&W cal Glock to a .357 Sig? What is the advantage? Is the .357 Sig a more powerful caliber? Is it cheaper to purchase .357Sig ammo than .40S&W? It's something that I've contemplated but what's the point?

    Thanks.
     
  2. bac1023

    bac1023

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    Not more powerful.

    I prefer 357Sig over 40S&W, but I doubt I'd switch after the fact.
     

  3. ambluemax

    ambluemax

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    Uuuuuuh I thought there was a power difference. I'd call BS, but bac usually knows his stuff so I'm confused.

    I'll be converting my 23 to 357sig for deer season for the power increase, but also we have a barrel length restriction to carry a pistol during open deer season, so I need to buy an extended barrel anyway...and the 40 might also be a black listed caliber for deer here. That's why I'm converting. Otherwise most of the time the 40 barrel is in it. 357 IS NOT cheaper to shoot.
     
  4. glock2740

    glock2740 Gun lover.

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    The .40 is cheaper to shoot, but the .357 Sig delivers more energy.
     
  5. GlockPreacher

    GlockPreacher

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    As has already been mentioned multiple times on various posts, the 357 sig may not be a more powerful round, but there are definite advantages, as there are advantages to the .40 cal. Ammo is definitely more expensive, around $25.00/50. I never shot the 40 cal but they say the recoil is definitley more than the sig. I love my sig and would be confident using the standard barrel while hunting if they allowed it in PA. Both are great rounds...just depends on what you're using it for I guess
     
  6. Calhoun123

    Calhoun123

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    Under curtain circumstances one may outperform the other. There is no major difference in power. Both are only slightly more powerful than 9mm.
     
  7. Glock39Pirate

    Glock39Pirate

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    sure, but with heavier loads the .40 will penetrate farther. Hyper speed doesn't always mean deeper shots...go heavy in any handgun caliber or go home.
     
  8. Special Reserve

    Special Reserve

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    I shoot both out of my g27 and g23. .357 sig is a lot louder. Which is sweet. Didn't notice any other difference as far as kick. As already mentioned .40 is a lot cheaper 32/100 vs 50/25 and easier to find.
     
  9. sixftunda

    sixftunda

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    I thought I read on this site somewhere that Chicago Transit Authority uses .357 because it will penetrate a bus seat.
     
  10. glock2740

    glock2740 Gun lover.

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    You can argue light and fast vs. heavy and slow all day. Both sides will have winning arguments all day. :yawn:
     
  11. plasticpistol

    plasticpistol

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    IMO any time you can get closer to rifle velocities is a good thing. I'd take the 357sig any day over 40.
     
  12. vmann

    vmann Controller

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    the main reason i dont use a 357 sig round or a 9mm...your dealing with a smaller faster bullet...the smaller faster bullet has a better chance of going through your target and into someone else....now if you need a bullet that will penetrate a car door or light armor, then get a 357 sig...but that would not be my bullet of choice for a sd weapon...
     
    Last edited: Mar 4, 2010
  13. hoffy

    hoffy

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    The reason the 357 SIG exists is due to an empirical study done some time ago by Evan Marshall that examined real world shootings and the results. He found that by a good margin the 357 magnum 125 JHP fired from a 4 inch revolver had the best record for one stop shots without over penetrating. This was a while ago, but when many PDs dropped wheel guns, they went to 9mm, and the results were less than spectacular , over penetration if a HP did not expand, problems with windshields, there is a long list. Now there are plenty that will scream foul, but 9mm IMO is only acceptable in +P+ (made for LEO, but readily available) and in a decent barrel length. Put one in a shorty, you are getting regular 9mm velocities. A big + for the 9mm is cheap to shoot. SIG and Federal combined to try and duplicate he ballistics of the 357 magnum load out of an auto pistol, they came pretty close.

    Anyway, if you have a 40, shoot it a lot as 40 ammo is much cheaper than 357 SIG, but do a little research, and you might want to buy a barrel and carry 357, though you should practice with it every so often as the muzzle blast is significant, though it is flat shooting and will kick less than a 180 grain 40. I have 3 357 SIGs and two like the Remington 125 gr express(green& yellow box) and another likes the Winchester Ranger LEO load. I carry both, 40 and 357(and 45 acp too) and I prefer the 357, most loads will have 500+ ft/ lbs of muzzle energy and some 180 40 cal loads are only in the lower 400ft/lb range. I use 165s in 40 and 185+p in my Glock 30.

    I can hit well with all, but the 357 shoots pretty flat, and you don't have to make as big of adjustments in sight picture when you get out to 50 yards +. Hope this helps. Check out the 357 SIG section of this forum. :wavey:
     
  14. Chowser

    Chowser

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    our guys with 23s and 27s bought ,357 barrels when we switched from the 22 to the 31. makes it easier since due to budget problems we will no longer supply ammo except for 357. 2010 is the last year we are purchasing .380/9mm/.40/.45 for the guys.
    i better stock up on .45 then.
     
  15. G33

    G33 Frisky! CLM Millennium Member

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    Both good rounds.
    .40 for the common day.
    .357 for the special day.
    :supergrin:
     
  16. SIUC4

    SIUC4 Glockness

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    Must be a 9mm guy...
     
  17. shooting4pizza

    shooting4pizza

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    Both are great (my favorite) rounds but have IMHO a little different application in use. The 40 S&W has slightly better characteristics for Home Defense because it has slightly less potential to "over penetrate" its target - I use the G23 40 S&W as my regular carry and house gun. The .357 SIG has greater potential for penetrating metal, glass and assorted obstructions (maybe over penetrating) I use the G32 .357 SIG as my car gun. Great information has been shared above and after reading the comments above it is best to evaluate your application and use the round that best suits your specific needs.
     
    Last edited: Mar 5, 2010
  18. Domestic615

    Domestic615 OD G19

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    .357sig is alot more powerful check the ballistics , I had a 27 for EDC i shot a rental G33 at my local range i traded my 27 that day in for a new od G33 ill never go back to a .40 the .357 makes alot better groups at the same distance and its higher velocity and the ammo is readily available every where in my city so its great.

    I would be careful you could easily shoot through a BG and hit someone or something else.
     
    Last edited: Mar 5, 2010
  19. Chowser

    Chowser

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    Has there ever been any documented cases of .357SIG rounds overpenetrating a person?

    I know this, for putting down deer, the .357SIG has been very effective and worked much better for us than the .40.
     
  20. vmann

    vmann Controller

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    just so no one thinks i am against the 357 sig round, it is on my short list for my next pistol...either 32 or 33...havent decided yet...