.357 Sig

it's either a necked down 40cal , or a super speed 9mm- don't really see an advantage over say a 38 super- or any of the "long" nines- i'd go 40 or 9, your PAPER target won't notice the difference
 
True enough. Many downrange IPSC targets have suffered from my .45s and .40s!:beerchug:
However, I am always interested in newer calibres. Continuous improvement in technology appeals to me: which is why I am seeking opinion on the .357 SIG.
 
Well, complimenting my earlier comment, it certainly is advanced and makes a good deal of sense. You can put a proper crimp on it, like a revolver, due to the shoulder headspacing like a rifle. As well, bottlenecked cartridges feed much better than straight walled, and you can literally feed just about anything up to and perhaps including wadcutters with it. It's in use by the secret service I believe, and I believe air marshals are using it in some capacity, this is just hearsay mind you off this site, though I imagine accurate.
 
Ardent said:
I've got a Glock in it, it's good. Expensive brass, bit of a pain to reload, snappy recoil. Advanced design, headspacing on the shoulder, and good performance, feeds nearly any bullet shape.
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All the reloading information I've read on the .357 sig state that it headspaces on the case mouth, not the shoulder. In reality, like 9mm and 45 acp, they probably just hang on the extractor......:D The ballistics are really good though, matching .357 with 125 grns. I'd like one for the fun of it, an XD would be nice. And by all accounts it feels like a dream. (when was the last time you saw a tokerov jam? )
 
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...a heavily roll crimped .357 SIG drops into the chamber of my barrel (out of the gun) and headspaces perfectly. As you mentioned, yeah cartridges will pretty much just hang on the extractor as well, I've fired .380 ACP out of an NP29 and it functioned perfectly, not recommended mind you. :p But in a pinch, good info. :p
 
Ardent, I just checked with some knowledgable people down south and you are correct.Secret Service and Airmarshell are using them a number of the state police are also looking into 357 sig.
300Spartans get a Glock 22 or XD in the 40 it is then easily switched to 357 sig with an aftermarket bbl .shoot 357 and when you run out of brass or cash
just shoot the 40 again.every range I know is littered with 40 casings and
if your range is used by the Leo you can easly pick up the more expensive
nickel casings. I dont know how easy or dif it would be to neck down the
40 to 357 but I guess it be an interesting project.
regards
 
;) I've got a stainless Sig 226 in 40S&W, but picked up a .357Sig barrel...
Just like the Glocks, it's a 5 second drop in deal..uses the same mags.
In the all stainless gun, the recoil is no problem, and with commercial loads,
is apppreciably less than the 40!
If the Air Marshals are issued it, you know it must be the hot poop!;)
 
If you were the going the Glock route using factory ammo, what would you prefer full size wise... the G22 w/aftermarket .357 Sig bbl, or a G31 w/aftermarket G22 bbl with more case support? Since the guns are apparently exactly the same, I guess it is a choice of markings on the side... 22/.40 or 31/.357.
 
I have a Colt Delta Elite with an aftermarket (Ed Brown) bbl in .357 SiG. If I were able to carry, I'd carry it in .357 SiG configuration....
 
Dragoon said:
I have a Colt Delta Elite with an aftermarket (Ed Brown) bbl in .357 SiG. If I were able to carry, I'd carry it in .357 SiG configuration....
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I live part time in Montana; my neighbor works for the Montana Highway Patrol and is issued a .357 Sig in (what else) a SIG. I've been carrying a BHP in 40 S&W. Shooting the two with 125 grain bullets in his and 155 grain bullets in mine, side by side I don't feel too much difference. Looking at the paper ballistics, I don't think 50 ft/lbs of energy is going to make much difference in the real world (favours the SiG). And if you compared them using their respective momentum values instead of ft/lbs, the .40 would probably be a bit ahead, and again no real difference in the real world. Choose the best performing for each from Cor-Bon's line of defensive ammunition, and the ft/lb energy levels for each are identical: 575 ft/lbs. Just no real difference between the two, really.

If I was really obsessed with having enough thump, I'd go to the 10mm and Cor-Bon ammo and call it good. 700 ft/lbs had better do it... if that's the measurement you wish to use for comparison.

In the world of Canada where we're all obligated to partake in the victim lottery, even police when they're not at work, I'd stick with the .40 simply for convenience sake and cost. Brass is easy to get, and in pistols straight walled cartridges are much easier to reload with in my opinion. Of course, if a .357 SiG floats your boat, then that is what you should buy.
 
You can neck .40 down, but its a lot of work and the neck is short.

Rotek said:
Ardent, I just checked with some knowledgable people down south and you are correct.Secret Service and Airmarshell are using them a number of the state police are also looking into 357 sig.
300Spartans get a Glock 22 or XD in the 40 it is then easily switched to 357 sig with an aftermarket bbl .shoot 357 and when you run out of brass or cash
just shoot the 40 again.every range I know is littered with 40 casings and
if your range is used by the Leo you can easly pick up the more expensive
nickel casings. I dont know how easy or dif it would be to neck down the
40 to 357 but I guess it be an interesting project.
regards
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Cocked&Locked said:
You can neck .40 down, but its a lot of work and the neck is short.
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.357 Sig brass IS NOT necked down 40S&W, just as 45GAP isn't just a 'shortened' 45ACP case.
The base and web area on the 'smaller' cartridges has been beefed up...
I would advise against trying to generate .357Sig brass from standard 40 brass...
All you need in one case failure to ruin your day/your gun/your range partner!
 
foxbat said:
.357 Sig brass IS NOT necked down 40S&W, just as 45GAP isn't just a 'shortened' 45ACP case.
The base and web area on the 'smaller' cartridges has been beefed up...
I would advise against trying to generate .357Sig brass from standard 40 brass...
All you need in one case failure to ruin your day/your gun/your range partner!
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I wasn't suggesting you SHOULD do it, just that it Can be done. And your absolutely right, the Sig brass has a substantially stronger web.
 
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