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Converting SIG p226 .40 to 357sig

Discussion in 'Handguns: Autoloaders' started by PacemParabellum, Mar 28, 2012.

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  1. PacemParabellum

    PacemParabellum Member

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    good morning, i was wondering if anyone ever converted their Sig p226 40 caliber to the 357 sig. its the same casing and from what i understand all i need is the 357 sig barrel. the 357 sig fits the .40 caliber mags.
     
  2. PacemParabellum

    PacemParabellum Member

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    same casing meaning same size where the extractor grabs the casing, i know it has a tapered neck
     
  3. rbernie
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    rbernie Member

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    I have - it was a simple barrel swap.
     
  4. PacemParabellum

    PacemParabellum Member

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    Rbernie thats it? cool did you order from sig or somewhere else?
     
  5. rbernie
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    rbernie Member

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    If I recall correctly, I ordered the barrel from TopGunSupply (TGS).

    I am struggling to remember if I also needed to change the recoil spring... Nope - just checked and it's the same spring (green) used for both chamberings.
     
  6. PacemParabellum

    PacemParabellum Member

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    does the 357 sig put any additional stress on the gun from what you can tell vs the 40? ive read it does but id rather get the opinion from an actual owner
     
  7. rbernie
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    rbernie Member

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    It's snappier but I have no way to know how it stacks up to the 40SW in terms of stress on the gun. I assume that it's ok for the gun since Sig sells a bunch of 'em.
     
  8. Black Butte

    Black Butte Member

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  9. dondavis3

    dondavis3 Member

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    One of my Sig P229 came with a .40 cal and a .357 barrel .

    [​IMG]

    Just swap out the barrel & spring & fire away.

    :cool:
     
  10. hAkron

    hAkron Member

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    I did this with my P229, just a barrel swap and that's it. I live close enough to Top Gun Supply that I drove up there and bought the barrel. Those guys really should put pictures of their 'show room' on the website because it's really nice in there.
     
  11. trex1310

    trex1310 Member

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    I have a P226 that I did what you are asking. I just got a .357 Sig
    barrel from Sig and dropped it in. No need to get different mags.
    It works just fine.

    [​IMG]
     
  12. RedAlert

    RedAlert Member

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    I have a P229 that I did the swap from .40 to .357 just by changing out the barrel. I want to do the same to my P239, but I've heard I need different mags as well. Is this true?
     
  13. fillupe

    fillupe Member

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    .357s vs 40 cal

    I've acquired both P226 & P239 as 40 Cal, I bought the .357 barrels for both and the original 40 Cal magazines accept the .357s ammunition, same number of rounds, all is equal! The .357s rounds are noticeably snapper.
     
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