.357 Sig Bottle-Nose reliability myth.

Discussion in 'Caliber Corner' started by hamster, Nov 11, 2013.

  1. hamster

    hamster NRA Life Member

    I'm a huge fan of the .357 SIG round, but have to say I've been a bit disappointed in the alleged feed reliability of the round.

    The bottleneck design of the round may be helpful in theory, but in reality the most common FTFs I've seen with any caliber round have occurred when the hollow point cavity hangs up at the bottom of the feed ramp.

    Personally I've had this happen more with 357 rounds than any other. Perhaps because the 357 round is slightly more prone to setback? Or perhaps something about the design of Speer's gold dots.

    Out of my glocks, I've never had a single FTF with 9mm, 40 or 45. I don't know why I'm cursed .357 issues across G33, G32 and even my Sig P239 with all sorts of different HP ammo.

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  3. I have also read a lot of the same about the sig round but also have read a lot of post about people having feeding issues, mostly nose to ramp sticking. I had a 32 barrel for my 23 and never had a issue though.

  4. SIG229, SIG239, and most recently, Gen4 G22 w/ G31 bbl. Never one jam in over 10 years of shooting this caliber. That said, I must admit I've shot only a small number of GDHP's, due to their high cost.

    I reload for this round, and lately have been using the 124gr. Montana Gold JHP's, which are very moderately priced. They're advertised as 9mm bullets, but their shape works quite well in the .357SIG case. I also now use the Lee factory crimp die, which makes bullet set-back less likely.

    This round is tops in my book.

  5. WarEagle 1

    WarEagle 1 Taco Tuesday

    This is the first time I've heard of this. I myself have never had any problem in the thousands of .357 Sig rounds I've shot, that includes various types of ammo and shooting G31, G32, and G22, G23 with .357 Sig barrels.
  6. I've had this issue with the SIG P239 that was a 357 from the factory. I couldn't fix the problem. I put in a .40 barrel and everything worked fine. Ended up selling the SIG.

    My HK USP Compact and gen3 Glock 32 work fine and have never had an issue with Winchester Ranger or Federal HST. Never had any gold dots to try.

    My brother's been shooting 357SIG forever. His gen3 32 has gone over 7k rounds with no issues. His HK P2000 has even more rounds through it and he's had no issues.

    I think he was having some failures to extract and brass to face with his gen4 31, but I think he said he got some part in from Glock recently which fixed the problem.

    He did say that he has noticed bullet setback problems but that's because his officers are constantly rechambering the same round over and over.
  7. The 357 Sig doesn't seem to be any more reliable than other semi-auto cartridges.
  8. Very interesting information here. I had presumed the .357 Sig would be very reliable and never had issues with it. But others have and it sort of negates that theory.
  9. Below is the type of malfunction I've experienced in a Gen 4 G31. It's factory American Eagle ammo and it also happened with Winchester White Box. 2 times in 750 rounds fired. The bullet literally wedged in the chamber and the shoulder bulged. It's a very hard jam and not easily cleared.

    It's interesting to note that in over 2000 rounds fired through my earlier Gen 3 31 with the same ammo, no problems. Although I did see this type of jam in a Sig pistol during qualification also with factory American Eagle.

    #8 dbarn, Nov 11, 2013
    Last edited: Nov 11, 2013
  10. RyanNREMTP

    RyanNREMTP Inactive/Banned

    The only issue I have ever had shooting the 357 was when I shot it through my G22 and a conversion barrel. The issue was the last round would hang up in the magazine and not feed. This was with the regular G22 mags. It didn't happen all the time just a few times.
  11. My P239 in 357 SIG is the single most reliable semi auto I have ever owned. It was not as reliable in .40.
  12. My last Sig 2022 in .357 Sig was a jam monster. Sig couldn't fix it, I sold it. Kept hanging up on the feed ramp.
  13. Smaller bullet into a bigger hole tends to fit easier all being equal. However if you compare the same year .357sig barrels vs .40 barrels (on Glocks) you may notice the feed ramp is relieved quite a bit more on the .40. The .357sig has more support. This may or may not be an issue. I think a lot of feeding issues with the .357sig is caused by nose diving or out of spec ammo.

    Although I will say the Speer Gold Dots (both versions) have fed the roughest in my Glocks and hit the feed ramp the hardest. Especially my G33. They were also more prone to setback in my testing. I have never had any malfunctions however I went to a round that feeds better and does not setback near as easy. The Federal HST and Rem GSB.
    #12 dkf, Nov 11, 2013
    Last edited: Nov 30, 2013
  14. Never had a single issue from my 3rd and 4th gen 33,32, or 31s. with Gold dots or the FMJ rounds.
  15. Of all my glocks my 32 is the only one that has had a failure to feed.
  16. Wouldn't that have to be caused by a bad cartridge case? I don't see how a recoil spring could generate enough force to bulge a case out like that, in feeding.

    I haven't seen many feed problems, here on GT, with the 357 sig that wasn't a simple fix. There have been a few (maybe 2) that didn't seem to have any fix. Sorta like some Gen 4 G17s & G19s. I've had no problems with the G31 Or G33 in 15 yrs.
  17. I haven't experienced any problems with any of the ammo I've fed my .357SIG pistols--Glock or SIG Sauer.

    I'm curious to know which magazines/followers are being used on those failures. My Glocks are Gen3 and Gen4, and the SIGs are P229 and P239. I've used the dedicated .357SIG magazines for all of them, and haven't had anything hang up.
  18. .38 super

    .38 super Observer

    Most pistol rounds have reliability issues with extraction, not with feeding, that's why most modern rounds as 9x19 and 357sig are with tapered design of the cartridge case, it helps with the extraction from the chamber.
    Feeding issues in general are easier to fix with ramp polishing or so, than problems with out of spec ammo or chamber...
  19. I have had problems with my gen3 32 long ago. sold it with the quickness... my gen4 g22 with conversion barrel was absolutely flawless.
  20. I own four Sig 229's in .357sig, and I have never had any type of jam....Two of the pistols have over a 5000 round count, not one burp...I personally think it is the most reliable cartridge you can have....
  21. I've had this happen twice with older follower G23 magazines in my G23 wannabe G32 with a GLOCK 32 barrel installed...using the proper 357 SIG followers in my pistol it has been flawless...as have any SIG made pistols (two P226s, P229 and a SIGPro 2340) over thousands of rounds...lots of Speer Gold Dot and Lawman in there too...


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