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What are your opinions of the .357 Sig cartridge

This is a discussion on What are your opinions of the .357 Sig cartridge within the Ammo Dump forums, part of the Firearm Forum category; SO, I've reluctantly accepted the fact that I'm definitely going to need to obtain my CCW soon and am researching firearms. I read the FBI ...


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Old January 1st, 2017, 07:12 AM   #1
 
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What are your opinions of the .357 Sig cartridge

SO, I've reluctantly accepted the fact that I'm definitely going to need to obtain my CCW soon and am researching firearms.

I read the FBI report (attempting to justify their move back to 9mm) and noticed the .357 SIG tears a MUCH bigger hole which caught my attention.

Unfortunately, I've never heard of the cartridge before.

I'm wondering if anyone on this forum has done much shooting with firearms chambered in .357 SIG and if so what they like and don't like about it ?

Thanks in advance for your input.



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Old January 1st, 2017, 07:21 AM   #2
 
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Quote:
Originally Posted by BuckeyeMini14Guy View Post

Unfortunately, I've never heard of the cartridge before.


Thanks in advance for your input.

Happy New Year Buckeye, well let me say this if you are new to shooting work your way to up that .357 SIG. Because it will jolt you into reality when you let one off in a polymer frame handgun. It's a 'rocket' of a round.

Being that's it's necked it tends to feed better or at least that's the theory on necked casings. The Highway patrols like it because they run into having to shoot through cars as such and it has the potential of the .357 magnum of revolvers which is what it's intentions where to get that power in a semi-automatic when the switch was made to auto-loaders in the police dept's around the country.

You won't find any city cops carrying it that I'm aware of, because #1 most cops can't shoot and it's very dangerous if they miss. You might end up killing somebody with that round 6 blocks away.

Have fun.

Last edited by Mulebuk Sam; January 1st, 2017 at 07:30 AM. Reason: spell check
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Old January 1st, 2017, 07:33 AM   #3
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I shoot it in a Sig 2022. The gun is originally a .40 but all you have to do is drop in a 357Sig barrel and off you go. It even uses the same magazines. Frankly, I'm indifferent to it. The main reason I bought the conversion barrel is I had a 20% coupon and it was on sale. It was only just under $150 delivered to my house. A lot of the Sigophiles sing it's praises but I don't get what all the fuss is about. It feels to me like a .40. The recoil is slightly snappier but less forceful. I think that's mainly due to the smaller bullets. Keep in mind that the 357Sig is just a necked down .40. Which brings me to my main criticism of the 357Sig. Because it's a bottlenecked cartridge it's more of a hassle to reload than a straight walled .40.

Overall I'm glad I bought the conversion barrel simply because now I have another caliber to shoot and I get to contribute to threads like these. I reload for every caliber I own except 357Sig. I don't shoot it enough to justify getting set-up to reload and, like I said, the fact it's a bottlenecked pistol cartridge pretty much kills the deal for me to reload it. I don't shoot it enough to put up with the aggravation. IMO the 357Sig is the classic case of a solution in search of a problem. Full power .40S&W will do everything 357Sig will do.
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Old January 1st, 2017, 07:34 AM   #4
 
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You've never heard of the cartridge because it is the next thing to obsolete, unless you already own a handgun chambered for it. The reduced diameter of the case makes it that much harder to handload, compared to a "straight" case, such as a .40 or 9mm. If I was offered one for free, I'd decline immediately.
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Old January 1st, 2017, 08:52 AM   #5
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All this talk about 357Sig prompted me to grab my 2022 Sig357 and my P229 SAS .40 and go out back to shoot a couple magazines through each of them. I was shooting Sig 125gr FMJ in the 357Sig (claimed 1356fps) and Winchester WB 165gr FMJ (claimed 1060fps) in the .40. The guns are dimensionally the same (well, close enough).

Felt recoil on the 357Sig was noticeably more than the 40. I don't remember it being that much different but today it was. Obviously 300fps faster matters but it's also a lot smaller bullet. I was able to accurately double tap a lot faster with the .40 even accounting for the differences in trigger (SRT vs non SRT). As much as I like my 2022 my P229 SAS is just such a sweet shooter it's not really an apples to apples comparison. Bottom line: I don't want to get shot with either one of them.
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Old January 1st, 2017, 09:15 AM   #6
 
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I have two friends with SIG convertible pistols (.40 S&W/.357 SIG), and a few of our PDs in the area had the .357 SIG as their main issued caliber a few years back. My friends rarely shoot the .357, due to the higher cost and lower availability of ammo. From what I know, most of the PDs around here have moved away from any issue/duty cartridges other than the 9mmP, .40 S&W, and .45 ACP. In my area, I'm seeing quite a few officers now carrying 1911s. Even the .40 cal preference seems to be waning. It will be interesting to see what happens with the CHP and their old all-steel S&W .40 cal pistols.
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Old January 1st, 2017, 09:19 AM   #7
 
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Buy a .40 and be done with it.....
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Old January 1st, 2017, 09:25 AM   #8
 
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I don't own one but on paper it would seem that a really hot 9mm is right there with the Sig load. I would buy a 9mm if you want to stay in that size bullet. More capacity, cheaper, more available, and can be hot rodded if need be but like bonk said, I wouldn't want to be poked by either. Good luck.
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Old January 1st, 2017, 10:26 AM   #9
 
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The .357 Sig seemed like a great idea at the time. Evan Marshall's lethality studies had crowned the 125gr .357mag JHP round as the stopping power king with 96% one-shot stops(with a center of mass hit). The bottle-necked Sig round reproduces the ballistics of the revolver cartridge in a package suitable for the modern semi-auto platform. There are no where near the number of ammo options available for the .357Sig as compared to the parent .40S&W case, much less the increasingly deadly yet easy to shoot 9mm. The .357Sig is cool and different from what everyone else is shooting at the range, but has its limitations. It's expensive, kind of hard to find, and limited in utility due to bullet weight constraints. You can't get use of the traditional 140 and 158 grain .357 jacketed bullets in the Sig case because of intrusion into powder space. I'd still like to have a .357Sig handgun because I am a magnum revolver guy who grew up carrying Federal 125gr .357 JHP's and love the terminal performance. It's just not the practical choice in a new handgun purchase in 2017. However...who says we need to be practical?
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Old January 1st, 2017, 10:53 AM   #10
 
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I have a S&W .40c I bought 4 years ago. I eventually bought a 9mm barrel and then a 357sig barrel. You need a different magazine for the 9mm, but the .40 and 357sig use the same mag. I don't like the way this gun shoots, and it is not accurate at any distance with any of the three calibers, but it is functionally dependable. I started reloading 357sig and they are not fun to reload properly. I dropped one on the floor and it pushed the bullet back into the brass, so I crimped them a little tighter and I had a fail to feed and that pushed the bullet back into the brass. I would say they shoot as well as the .40, but I stopped reloading them and shot up all my rounds and found no one wants to buy a 357sig barrel. Tried to sell the reloading dies and no one wants those either. Not a popular round. But I do have one handgun that will shoot 3 different calibers.

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Old January 1st, 2017, 11:07 AM   #11
 
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It is a situation of not having a large enough need. For free I would certainly take one.
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Old January 1st, 2017, 12:14 PM   #12
 
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Well, I guess I will buck the trend here. I have a Sig SP2022 and a Sig P250sc. Both were bought as .40 S&W guns and I immediately bought .357 Sig conversion barrels for both.

I do not notice any difference in the recoil between the .40 S&W and the .357 Sig, although the .357 Sig does seem louder and has more muzzle flash.

I have not tried reloading the .357 Sig but I do reload .40 S&W. Because .357 Sig is a little more expensive than .40 S&W, I usually shoot more .40, but do shoot a fair amount of .357 Sig.

I do choose to carry .357 Sig in my P250sc. Ballistically, the .357 Sig is similar to a .357 magnum. I can carry my LCR .357 with five rounds or my P250sc with 12 rounds and have essentially the same effectiveness as the LCR but twice as much capacity.

Sure, you can carry 9mm and have even more capacity and with effective shot placement be just as safe. The bottom line is, concealed carry or any kind of self defense should be based on what you are comfortable with and can shoot effectively.

Good luck with that process and have fun while you are doing it. See if you can rent or borrow a variety of guns and calibers and find what works for you.
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Old January 1st, 2017, 12:34 PM   #13
 
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Thanks guys, looks like it might not be the cartridge I'd been hoping existed. I was hoping to find a hot little cartridge in a pistol as compact as a .38 with much more velocity than a 9mm because I don't believe .38 or 9mm are adequate at putting down a threat.

I looked into 5.57 but in a shorter barrel you give up so much velocity that you're probably better off with a more traditional handgun.

I suppose what I'm looking for is a unicorn because if a handgun round like that existed, it would be WILDLY popular already lol

I've always been more of a rifle guy and realize handguns are essentially a compromise that sacrifices velocity and accuracy in exchange for portability. Which is why I've never really messed with them.

Thanks again for the feedback.

I'll just keep looking and researching because I won't actually need or be able to afford anything until later this year. (I work in HVAC, we have a lot of customers in the rougher parts of town and eventually I'll be getting sent out more and more on my own)

Last edited by BuckeyeMini14Guy; January 1st, 2017 at 12:41 PM.
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Old January 1st, 2017, 12:53 PM   #14
 
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Quote:
Originally Posted by firescout View Post
I have two friends with SIG convertible pistols (.40 S&W/.357 SIG), and a few of our PDs in the area had the .357 SIG as their main issued caliber a few years back. My friends rarely shoot the .357, due to the higher cost and lower availability of ammo. From what I know, most of the PDs around here have moved away from any issue/duty cartridges other than the 9mmP, .40 S&W, and .45 ACP. In my area, I'm seeing quite a few officers now carrying 1911s. Even the .40 cal preference seems to be waning. It will be interesting to see what happens with the CHP and their old all-steel S&W .40 cal pistols.
From what I understand, .40 has been the primary handgun for most law enforcement from the mid 1990's until recently. I'll bet those guns will end-up collecting dust in the back of their armories as .9mm becomes the prevailing fad.

After reading the report the FBI sent to law enforcement agencies regarding their decision to revert back to 9mm as well as seeing the pics of their ballistics tests, I maintain that it has much more to do with saving money on ammo than anything.

Because their own tests clearly show that the 40 is much more effective. Now the difference between the .357 SIG, .40, and .45 were marginal but the 9 was significantly weaker.

Here's one of the articles I came across. https://looserounds.com/2014/09/21/f...ning-division/
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Old January 1st, 2017, 01:01 PM   #15
 
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Originally Posted by White Squirrel View Post
Well, I guess I will buck the trend here. I have a Sig SP2022 and a Sig P250sc. Both were bought as .40 S&W guns and I immediately bought .357 Sig conversion barrels for both.

I do not notice any difference in the recoil between the .40 S&W and the .357 Sig, although the .357 Sig does seem louder and has more muzzle flash.

I have not tried reloading the .357 Sig but I do reload .40 S&W. Because .357 Sig is a little more expensive than .40 S&W, I usually shoot more .40, but do shoot a fair amount of .357 Sig.

I do choose to carry .357 Sig in my P250sc. Ballistically, the .357 Sig is similar to a .357 magnum. I can carry my LCR .357 with five rounds or my P250sc with 12 rounds and have essentially the same effectiveness as the LCR but twice as much capacity.

Sure, you can carry 9mm and have even more capacity and with effective shot placement be just as safe. The bottom line is, concealed carry or any kind of self defense should be based on what you are comfortable with and can shoot effectively.

Good luck with that process and have fun while you are doing it. See if you can rent or borrow a variety of guns and calibers and find what works for you.
Thanks for the perspective. Definitely a lot to consider as far as trad offs because handguns are not rifles lol. Plus you also have to factor in how practical it is to conceal.
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