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.357 Sig in GLOCK 27

Discussion in 'General Glocking' started by Glockasaurus Rex, Feb 22, 2010.

  1. Glockasaurus Rex

    Glockasaurus Rex Degüello

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    I have a perfectly good GLOCK 27. I am intrigued with the .357 Sig round. Would a simple bbl change be all that is needed to shoot the .357Sig or would I need a stiffer recoil spring? How does the 357 Sig perform in the 27's shorter barrel (IOW how much does it take away from that "magic" 357 Magnum 125gr at 1450fps)? How much more muzzle flash/blast should I expect? (I use Corbon which has done a good job at suppressing the flash), and finally, Is the swap worth it?
    I've heard some say ".40 is good for shooting targets, the .357 is good for shooting bad guys" and "that .357 Sig is flat shooting and penetrates hard barriers well (citing the Texas DPS rookie trooper killing a perp in an 18 wheeler with his new 357 sig where the veteran officer's .45acp bullets were stopped). Just wondering. Thinking of a Jarvis or Bar-Sto Barrel. Thanks.
    Andy :chatter:
     
  2. DowntimeLA

    DowntimeLA

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    may be worth putting a G32 barrel in it to utilize the extra powder, i would use .357 sig followers in the mags.

    make sure it's a gen 3 (3 pin frame gun)


    i have a G32 and a G23 barrel for it, i never use the .40 barrel. love the .357
     

  3. Jeebs40

    Jeebs40

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    You might want to check out KKM barrels, they seem to have best reviews I could find on Glock aftermarket barrels.
     
  4. WGO55

    WGO55 Lifetime Member

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    I have .357 SIG barrels for several of my .40 S&W Glocks. The .40 S&W magazines work just fine. Try it before you take the suggestion of changing the followers.
     
  5. NYresq

    NYresq

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    I have never had any issues shooting 357sig rounds through my 27 or my 35 using the stock 40 mags. I have never seen a glock 357sig mag follower next to a 40 follower, but I know most other manufacturers mark their mags 40/357. Sigsauer, smith, and springfield all list the mags as dual caliber. I have fired thousands of 357sig rounds through my glock 40 pistols without any issues. Before you go out and spend money on mags, try your 40 mags and see.
     
  6. El Lupe

    El Lupe

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    I have a KKM G33 bbl for my G27, works great. I've also always use/used my 40 mags without any problems.
     
  7. MarcoPolo

    MarcoPolo

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    I just made the barrel change. (no other) I didn't care for that particular round through that particular gun, so I sold the barrel.

    I definitely recommend carefully labeling your mags to ensure you don't load a .40SW in with your .357sig rounds!
     
  8. DrtyHarry

    DrtyHarry

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    Can you tell us a little more as to why you made this decision? What was it about the round that didn't take to you? Any jams, ftf, etc? Thanks! :wavey:


    DH
     
  9. G26S239

    G26S239 NRA Patron

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    I got a 33 barrel for my G27 and it works fine as a drop in. The 357 Sig still gets excellent performance out of a short barrel. I don't consider the swap worth it because the muzzle blast of the 357 is obnoxious from a 3.46" barrel IMO.
    As far as 40 only being good for shooting targets are you really going to pay attention to anyone who calls a 40 caliber 180 grain HST or 155 grain Gold Dot load weak?
     
  10. MarcoPolo

    MarcoPolo

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    Sorry to be vague. No feeding issues at all, and I like the .357sig round (and will likely add one soon). I just didn't care for it in a smaller frame like the G27. FOR ME, I didn't feel the gain in ballistics was worth the slower follow up shots. (This is obviously subjective and may not be the case for you).
     
  11. DrtyHarry

    DrtyHarry

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    ^^Interesting...thanks for answering me back!

    DH
     
  12. diggy485

    diggy485

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    I second that. I had a full size FN .357sig and i thought that it was fairly snappy, and hard to bring it back for a quick follow up. I can imagine it would be even more difficult with a sub-compact.
     
  13. Bello

    Bello America/Italia

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    ive used my 32 mags in my 27 and they worked flawless every time and i loaded the 32 mags with .40 s&w ammo works great no flaws
     
  14. Brian Lee

    Brian Lee Drop those nuts

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    This..


    I own two Bar-Sto barrels, and while I think they are better than Lone Wolf's are, I think Bar-Sto is a bit over priced, plus you have to wait so long to get them. Mine were delivered 18 weeks after they were ordered.

    KKM is the brand I'll try next time I buy a barrel, because I've read all kinds of posts from competition shooters who rave about them. Thing is, neither KKM or Bar-Sto are listing a .357 conversion barrel for the G27 right now.

    EFK Fire Dragon
    http://www.efkfiredragon.com/products.php?cat=43&pg=3
    has what you need for about 155 bucks.

    And Storm Lake
    http://www.stormlakebarrel.com
    has them for 160 to 175 depending on the length you want.

    Lone Wolf doesn't seem to be offering a .357 barrel for the G27 either.
     
  15. BiggJohn

    BiggJohn NRA Life Member

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    Just shot my 23 and 27 with my new Lone Wolf 357 SIG barrel from Cheaper Than Dirt. Definitely a bit snappy in the 27 but very pleasant to shoot in the 23. Used my 40 cal magazines as well and had no problems at all. Plus, with the Lone Wolf barrel instead of the factory Glock 32 barrel you can shoot lead and save some money at the range.
     
  16. G26S239

    G26S239 NRA Patron

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    The KKM 33 barrel will work in the 27 the same as a Glock 33 barrel will work in a 27 Brian.
     
  17. tango44

    tango44

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    The easy way to do it is just to use a G33 barrel in your G27 and you are good to go, .357 Sig is a great caliber I can notice the difference in the recoil but is not a problem for me.
    Also I decide to change mags just to avoid ammo confusion.
     
  18. Scott in Houston

    Scott in Houston

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    I have a G32 and a G27.

    Since they're different frames, I can't really say which is more 'snappy'. Is the .357 more snappy than the .40 in the same size frame?
     
  19. LRB2GZ

    LRB2GZ

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    I don't think so, although the recoil is different. .40 feels snappy to me, while .357 is more of a "hard push".

    I currently shoot .357 in a 23 with a 32 barrel, but a 33 might be in my future:cool:
     
  20. PBRLite

    PBRLite

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    The mag followers on the 27/33 are different. The follower on the .357 sig is taller. You can squeeze an extra .357 sig round into the corresponding .40 cal mags, but not vice versa.