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357 sig or 40

Discussion in 'General Glocking' started by FYRELT, Nov 9, 2012.



    Apr 14, 2005
    out of the two baby glocks 27,33 witch caliber is the best as a defense round with the short barrel,i looking to add one of these.

    g4 19
    g4 26
    g4 32
  2. for me I like the 27, but as which is best for SD its probably a draw. I like the 27 cause I can carry 180grn loads which seem pretty mild on recoil in a small gun and in GD and HST has a good rep for getting the job done. I have a 32 barrel for my 23 and carry that in the summer, some day I may get a 33 barrel for my 27 also. I see you already have a 32 so if you comfortable with that a 33 would be a good choice for you. you can always ger .40 cal barrels latter.

  3. DannyR

    DannyR Moderator Millennium Member

    Dec 17, 1998
    Roanoke, Virginia
    The .357Sig was designed to meet specific law enforcement criteria such as safety glass and sheet metal penetration. As such, it does not mean that it is the best choice for personal defense. Believing in the theory that bigger holes cause bigger leaks, I would choose a 40 over a 357, but actually choose a 45 over anything else.
  4. RayB

    RayB Retired Member

    Dec 2, 2005
    as 1canvas alluded to, the .357 Sig and .40 S&W barrels are interchangeable between their sister Glock models... :headscratch:

    Since the .357 Sig is essentially a .40 S&W necked down to accommodate a 9 mm bullet, you need only swap barrels to shoot either caliber from the same gun(s)... :thumbsup:

  5. RayB

    RayB Retired Member

    Dec 2, 2005

    Yeah, one rarely reads about a guy taking a dozen hits from a .45, and keeps on moving... :shocked:

  6. Bruce M

    Bruce M

    Jan 3, 2010
    S FL
    I am not sure whch is better or if there is enough of a statistical difference between them to even make a conclusion, but .40 ammunition does seem to be a bit more available and often a bit less expensive.
    Last edited: Nov 9, 2012
  7. jonboy20


    Dec 18, 2006
    Round Rock TX
    Which one can you shoot better? And my vote is for the 40sw.
  8. SJ 40

    SJ 40

    Jan 17, 2011
    As Bruce said supply and cost of the 40 would tilt the beam in the 40's direction. SJ 40
  9. Smoker


    Jul 21, 2008
    NE Kansas
    this thread goes the same way as the other kagillion comparing the 357 sig to a 9mm or 40.. Like re-runs on tv huh???
  10. [Un]Deadeye


    Nov 8, 2012
    I was in the same predicament when I bought my Glock... I went with the 27 and haven't second-guessed it once. I have toyed with the idea of picking up the .357 Sig barrel but still haven't years after the purchase.
  11. dkf


    Aug 6, 2010
    Pretty much.

    I have both a G33 and a G32 but have .40 barrels for them also. With Federal HSTs out of my G33 I am getting right under 1300fps velocity, more than adequate penetration and a bullet that is expanded to just over .700" at the widest point in wetpack. Good enough for me.

    If you depend solely on factory ammo for practice and do not reload you are probably better off staying with the 9mm or .40 due to ammo cost and availability. When you get into the Premium JHPs though the price difference narrows considerably vs FMJ.
    Last edited: Nov 9, 2012
  12. Wake_jumper


    May 3, 2007
    Probably because most .45's only hold 7 or 8 rounds. :whistling:
  13. cowboy1964


    Sep 4, 2009
    I've read about someone taking 7-8 hits of .45 and keeping going. And I've read many, MANY, cases of someone taking a single 9mm and going down. Not sure this proves anything....

    Yes, the correct answer is which can you shoot better.
    Last edited: Nov 9, 2012


    Sep 18, 2008
    Gainesville, FL
    Just double checking here. You are getting 1300 fps velocity out of the .357SIG in your G33? That's great! Makes me even more anxious to get a G33 barrel for my G27. I presume velocity will increase accordingly by adding a G31 barrel for my G22. Good info. Thanks.
    Last edited: Nov 9, 2012
  15. dkf


    Aug 6, 2010
    A little under 1300fps with the HST. Out of the longer G31 barrel you should see at least a 1400 fps or more 5 shot average.
  16. sig357fan


    Apr 8, 2008
    SW OH

    Any comparison of the weapons is a moot point in that they are, for all intents and purposes, identical, but a comparison of the rounds, for me comes down to three points.

    Shoot ability

    Which has the advantage in each category, and of all the advantages, which is most important?

    As for me, I broke it down in this way.

    Availability - I reload and can order ammo on line, no advantage to either.

    Shoot ability – 357 Sig tends to push straight back, 40 S&W has slightly more muzzle rise, very slight advantage to 357 Sig.

    Reliability – neither are even remotely considered unreliable, but having a 9mm bullet feeding into a 40 cal. chamber has got to be an advantage.

    Personal, I feel it’s more important to practice with your weapon than which defense caliber you choose, which ever you choose, I don’t think you’ll go wrong.

    Last edited: Nov 9, 2012
  17. JesseA

    JesseA Glock Historian

    Oct 7, 2012
    Shawnee Oklahoma
    I have a G31C and a G33. I love the G31 but the G33 is a bit hard to hang on to. After two shots I have to adjust my grip. My buddy has a G32 and I really love the feel of it.

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  18. TxGlock9


    Nov 22, 2010
    BMT, TX
    There is no better. And statistically no proof to say definitively. I love the 357sig round compared to the .40sw.. I shoot both equally well. The only reason why I would go with the .40sw is the price and the availability. If both were the same costs it's obvious that I would go with the 357sig...
  19. dkf


    Aug 6, 2010
    Try a GAP mag plate on the 33 and see if your grip is more solid. Depends on hand side but I can grip the gun very well with them.
  20. TnShooter83


    Aug 15, 2007
    I think the G33 is slightly easier to shoot than the G27. But it cost more to shoot than the G27. I'd give an ever so slightly edge to the 357Sig over the .40 but really not enough to make it a big factor in my choice.

    I rarely shoot my G33 because it cost more than .40.
    .40 cost more than 9mm, so I find myself shooting my G19 more and more.

    If you do get a G27 or G33 you can buy a conversion barrel and have 357 or .40 and even buy a 9mm conversion barrel if you want.