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.357 sig

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28 comments

  • num1MP
    I have owned just about everything out there under the sun. I am considering buying a sig 226 in .357 sig caliber. The 226 like the 229 has a drop in barrel for .40 s&w to change calibers. Do any of you guys know anything of this caliber. accuracy, cost availability, any input into sigs would too be appreciated. linetech1
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  • num1MP
    Saw this link over on ATE. It's pretty interesting:
    http://intrencik.com/357sig.htm

    Looks like the .357 SIG is a good steel penetrator.
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  • num1MP
    Went shooting tonight at my range here in NYC. Nice thing about my club is they have an inventory of several guns available to members. Anyway, I usually shoot my Colt .45 and thier Glock 26, but tonight I shot thier .357 sig. Whoaaaaaaa!!!!![:D]
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  • num1MP
    How accurate is the .357 SIG compared to the 9mm and .40?

    How is the stopping power compared to the 9mm or .40?



    .
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  • num1MP
    I bought a .357 Sig barrel for my S&W M&P .40 S&W. What is your opinion of the .357 Sig. Anyone have one? Got it on a deal with several mags for my M&P and could use them for both rounds. I like the M&P and have one in .40 and one in .45 acp. And my son had one in 9mm. They seem reliable, comfortable and accurate.
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  • num1MP
    Ok, this is a stupid question, but how big is the 357 sig bullet compared to a 9mm or 45? I am curious. Thanks in advance!
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  • Permanently deleted user
    It's ballistically superior to both.
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  • num1MP
    I wasn't asking which was BETTER, I mean, is it longer/fatter than a 9mm or 45?
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  • Permanently deleted user
    quote:Originally posted by num1MP
    I wasn't asking which was BETTER, I mean, is it longer/fatter than a 9mm or 45?


    It's a 9mm bullet in a necked down 40 S&W case...looks like a miniature rifle cartridge.
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  • jhimco
    As far as size is concerned of the actual bullet/ projectile- the .357 sig is .357 of an inch. In laymans terms about the diameter of a little over 1/3 of an inch. A .45 would be almost about 1/2 an inch in diameter. A 9mm is almost one centimeter in diameter. Get your ruler out and you can see what I am talking about.One drawback of the .357 sig is that it is a less common round than the 9mm or .45- therefore the ammon may be a little harder to find or in some cases more expensive. In my opinion they are all good rounds and have their purposes.
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  • theboogeyman
    quote:Originally posted by ECC
    It's ballistically superior to both.


    The .357 SIG is actually a .40 S&W necked down to 9mm size. It would be shorter than a .45, offering you the same compact grip as a 9mm or a .40. IIRC the diameter of the bullet is actually .355, same as a 9mm (experts, feel free to correct me if I'm wrong). The idea was to replicate the .357 Mag. in a semi-auto, and they came pretty close. And ECC was right, it's ballistically superior to both.

    P.S. I gotta stop typing such long posts...too many people beat me to my replies.
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  • ATF
    quote:Originally posted by theboogeyman
    quote:Originally posted by ECC
    It's ballistically superior to both.


    The .357 SIG is actually a .40 S&W necked down to 9mm size. It would be shorter than a .45, offering you the same compact grip as a 9mm or a .40. IIRC the diameter of the bullet is actually .355, same as a 9mm (experts, feel free to correct me if I'm wrong). The idea was to replicate the .357 Mag. in a semi-auto, and they came pretty close. And ECC was right, it's ballistically superior to both.

    P.S. I gotta stop typing such long posts...too many people beat me to my replies.


    The 357 Sig is not a .40 S&W necked down,the case length is .865 while a .40S&W case is shorter at .850. [:)]
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  • Permanently deleted user
    quote:Originally posted by ATF
    quote:Originally posted by theboogeyman
    quote:Originally posted by ECC
    It's ballistically superior to both.


    The .357 SIG is actually a .40 S&W necked down to 9mm size. It would be shorter than a .45, offering you the same compact grip as a 9mm or a .40. IIRC the diameter of the bullet is actually .355, same as a 9mm (experts, feel free to correct me if I'm wrong). The idea was to replicate the .357 Mag. in a semi-auto, and they came pretty close. And ECC was right, it's ballistically superior to both.

    P.S. I gotta stop typing such long posts...too many people beat me to my replies.


    The 357 Sig is not a .40 S&W necked down,the case length is .865 while a .40S&W case is shorter at .850. [:)]



    ...I guess we could have mentioned that...did not believe it was going to be an issue with this individual.
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  • Clarentavious
    The length of the bullet is different than the length of the entire cartridge. The bullet does not extend all the way back to the primer (it generally stops about mid way or less into the shell case). Bullet length is generally not something that concerns most people... unless you are having problems with keyholes in paper targets. This means the bullet doesn't have sufficient stability (usually meaning inadaquate exposure to rifling), and starts tumbling instead of spining like it should.

    The diameter is what concerns people more... as this tends to affect the size of the wound channel. That and the weight (how much the bullet weighs in grains).

    The 357 SIG is the same size as a 9mm in diameter... it simply has a greater powder charge, and therefore flies at a higher velocity, producing more energy. It's actually a pretty rare and expensive cartridge. Come to think of it, the only guns I recall off hand that are chambered for it are like one model of Glock, two models of Sig Sauer, and a couple of 1911's Generally not something you'd want for self defense... tends to overpenetrate.
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  • PC800
    The 357 Sig is an EXCELLENT self defense round, just as the 357 magnum is. And it does not overpenetrate any more than a 357 magnum does, as it was designed to duplicate the 357 magnum's ballistics in a semi-auto gun, which is why it is called the 357 Sig, not the 355 Sig or the 9mm Sig. Sig wanted to endear it with all those who still love the effectiveness of the 125 grain 357 magnum. There have been numerous large police depts that have adopted it, including the Texas DPS (Sig P226 DAK.) The Texas Rangers can carry basically anything they can qualify with, including 1911s, and 70% of them CHOOSE to carry a Sig with most of them choosing the Sig P226 DAK in 357 Sig. The 125 grain round will give you 1300-1500 fps out of the Sig P226, depending on the make of ammo. That is right with the 125 grain 357 magnum out of a 4" revolver, but with less recoil and more rounds.
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  • idsman75
    quote:Originally posted by num1MP
    Ok, this is a stupid question, but how big is the 357 sig bullet compared to a 9mm or 45? I am curious. Thanks in advance!


    Ah...I see a fellow 31B. Welcome.

    No stupid questions here--just stupid people [}:)][:D]
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  • num1MP
    HAHA, I was waiting for someone to say the whole " there's no stupid questions, just stupid people" comment, and leave it to another MP to say it. Thanks guys, I was looking at getting a .357 sig, as I have a 9mm lugar right now, and was looking into a new caliber that would deliver good stopping power. As you can see, I have limited knowledge when it comes to calibers and whatnot, but am happy you guys broke it down barney style for me. Thanks. And I was looking at the HK P2000 as the weapon to acquire. Thanks again!
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  • gunnut505
    Not "rare and expensive" at all, many more than 3 guns chambered for it, and reloads very easily at home.
    As has already been stated, is an Excellent defensive round, is accurate enough for silhouette work (shot a 31 with my SP2340 first time out; darn turkeys), and new ammo is only $12.50 @ Sportsman's Warehouse.
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  • sig232
    The 357 sig uses the same bullet as the 9mm. I reload them and its the same bullet.

    The case will work in 40 cal clips with no problem. If you own a 40 cal Glock you can by the extra 357 sig barrel, drop it in with no fitting necessary, use the same clips and you have a 357 sig. Or visa versa.

    I had the Glock model 32 in 357 sig and did that, bought a 40 cal barrel. It drops right in and works with the 357 sig clips.

    I called Glock and verified this fact and bought the barrel direct from them.

    I assume you can do the same thing if you own a sig in either 357 sig or 40 cal.
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  • Clarentavious
    quote:Originally posted by num1MP
    HAHA, I was waiting for someone to say the whole " there's no stupid questions, just stupid people" comment, and leave it to another MP to say it. Thanks guys, I was looking at getting a .357 sig, as I have a 9mm lugar right now, and was looking into a new caliber that would deliver good stopping power. As you can see, I have limited knowledge when it comes to calibers and whatnot, but am happy you guys broke it down barney style for me. Thanks. And I was looking at the HK P2000 as the weapon to acquire. Thanks again!


    As you can see, there's always going to be people arguing on this forum... Go to your local range, and ask them what kind of 357 sig they carry... if any. Then compare how many boxes of that they have to how many boxes of 9mm and 45 they have in stock. Then compare the price.

    Next, buy a box of 357 sig from somewhere, and a box of 45. Make sure they're the same style of bullet (both FMJs, etc...) Then go to your local range. If it's an outdoor range with action bays, go back to one of those, then shoot one 357 sig and one 45 straight into the dirt (make sure the ground is soft, and don't shoot yourself in the foot). Then measure how deep each bullet penetrated...

    Then you can find yourself a gun magazine and see how many other handguns are chambered for 357 SIG.

    Now you'll have yourself hands on, physical proof of what I'm telling you... and what a couple of people on here would prefer to contest...
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  • MPinkston
    quote:Originally posted by ATF
    quote:Originally posted by theboogeyman
    quote:Originally posted by ECC
    It's ballistically superior to both.


    The .357 SIG is actually a .40 S&W necked down to 9mm size. It would be shorter than a .45, offering you the same compact grip as a 9mm or a .40. IIRC the diameter of the bullet is actually .355, same as a 9mm (experts, feel free to correct me if I'm wrong). The idea was to replicate the .357 Mag. in a semi-auto, and they came pretty close. And ECC was right, it's ballistically superior to both.

    P.S. I gotta stop typing such long posts...too many people beat me to my replies.


    The 357 Sig is not a .40 S&W necked down,the case length is .865 while a .40S&W case is shorter at .850. [:)]


    Also the 357 sig case walls are thicker.
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  • ATF
    quote:Originally posted by MPinkston
    quote:Originally posted by ATF
    quote:Originally posted by theboogeyman
    quote:Originally posted by ECC
    It's ballistically superior to both.


    The .357 SIG is actually a .40 S&W necked down to 9mm size. It would be shorter than a .45, offering you the same compact grip as a 9mm or a .40. IIRC the diameter of the bullet is actually .355, same as a 9mm (experts, feel free to correct me if I'm wrong). The idea was to replicate the .357 Mag. in a semi-auto, and they came pretty close. And ECC was right, it's ballistically superior to both.

    P.S. I gotta stop typing such long posts...too many people beat me to my replies.


    The 357 Sig is not a .40 S&W necked down,the case length is .865 while a .40S&W case is shorter at .850. [:)]


    Also the 357 sig case walls are thicker.


    The reloading manual does not give that information.[:)]
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  • PC800
    Well, here are many models that are available in 357 Sig:
    Sig P226
    Sig P229
    Sig P239
    Sig Pro
    HK USP
    HK 2000
    Springfield XD
    Glock
    S&W Sigma
    S&W P-99
    S&W M&P
    Taurus 957 and PT157
    Beretta 96 and Cougar
    I might have missed some.

    All the gun shops around here stock good quantities of 357 sig ammo, FMJ and HP. As for shooting FMJ into the ground, that does not prove anything. Ammo performs much differently in ballistic gel or actual flesh than it would into the dirt. And FMJ is the worst type of ammo to use for self defense anyway.
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  • Clarentavious
    quote:Originally posted by PC800
    Well, here are many models that are available in 357 Sig:
    Sig P226
    Sig P229
    Sig P239
    Sig Pro
    HK USP
    HK 2000
    Springfield XD
    Glock
    S&W Sigma
    S&W P-99
    S&W M&P
    Taurus 957 and PT157
    Beretta 96 and Cougar
    I might have missed some.

    All the gun shops around here stock good quantities of 357 sig ammo, FMJ and HP. As for shooting FMJ into the ground, that does not prove anything. Ammo performs much differently in ballistic gel or actual flesh than it would into the dirt. And FMJ is the worst type of ammo to use for self defense anyway.



    If you can't understand that more energy measured in foot pounds equates to the projectile having more penetrating power, then I don't think there's any point in me continuing this conversation. I was using FMJs as an example... had you read my post correctly, you would have seen that I said use the same TYPE of bullet.

    The S&W Sigma and P99 are NOT offered in 357 sig. On Taurus' website, I don't even SEE a model 957 or PT157 And the Beretta 96 is .40 caliber...

    Now, that's what? 10 models maybe? And how many model guns use 9mm and 45?

    But, I'm not going to debate this with you anymore. If you're so confident that 357 sig hollow points won't exit human torso, then you can be the one to stand behind somebody who is shot with one.
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  • PC800
    Mags for Sigma 357:
    http://www.gunbroker.com/Auction/ViewItem.asp?Item=64937966
    So yes, they have been offered in 357 Sig.

    S&W 99 357 sig mag:
    http://www.{elsewhere}/search/displayitem.cfm?itemnum=7445014&aa= Smith & Wesson P-99 compact - .40 & .357 sig - NEW


    Taurus 957 357 sig:
    http://hunting.about.com/library/weekly/aasttaurustitaniumautos.htm
    http://www.{elsewhere}/search/displayitem.cfm?itemnum=7821817&aa= Taurus 957, 357 SIG, Stainless, Ported, SCARCE

    Yes, a few models have been discontinued but they are still available to buy. The rest are still very much available new, what 10 or so models not enough for you?

    As for over penetration, like I said, no more than the fabled 357 magnum did for years. Or depts like Texas DPS and the Virginia State Police would not issue it and famed organizations like the Texas Rangers would not even allow it. Police depts are very worried about being sued.


    And lists of authorized guns, notice the 357 Sigs:
    http://yborweb.hcc.cc.fl.us/Departments/Criminal_Justice/Approved_Service_Handguns_and_Calibers.htm
    http://www.fws.gov/policy/442fw1.html
    http://www.washoesheriff.com/academy-main-page.htm
    http://www.southkingstownri.com/code/twncouncil\tca_081006_162419.pdf
    http://www.boardmantwp.com/police/documents/calea policies/109 Deadly Weapons.pdf
    http://www.vsp.state.va.us/history.shtm
    http://www.delawaretrooper.com/museum/DSP History.htm
    That is just a few of them.

    I was mistaken about the Beretta 96, the ones I have seen must have had 357 Sig drop in barrels installed.
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  • ATF
    Quote"The S&W Sigma and P99 are NOT offered in 357 sig".

    I wonder what this is?

    standard.jpg
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  • Clarentavious
    Ok... but don't blame me if the manufacturers don't update their websites and magazines.
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  • ATF
    quote:Originally posted by Clarentavious
    Ok... but don't blame me if the manufacturers don't update their websites and magazines.


    Just jankin your chain,they only made a few of these (around 1500)a few years ago. [:)]
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