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Posted By: arky65 .357 sig or .40 sw - 03/25/20
Looking to get a new edc. I want higher magazine capacity than the 1911 officers, I carry now.

Looking at the SIG and FNH compact models.

I will handload.

What say youse guy's?
Posted By: jwp475 Re: .357 sig or .40 sw - 03/26/20


357 Sig in Underwood ammo gets some serious velocity 1475 to 1500 FPS with 125 grain bullets.

An extra barrel means you can have both.
Posted By: jwp475 Re: .357 sig or .40 sw - 03/26/20


357 Sig in Underwood ammo gets some serious velocity 1475 to 1500 FPS with 125 grain bullets.

An extra barrel means you can have both since they both use the same magazine
Posted By: chlinstructor Re: .357 sig or .40 sw - 03/26/20
Originally Posted by jwp475


357 Sig in Underwood ammo gets some serious velocity 1475 to 1500 FPS with 125 grain bullets.

An extra barrel means you can have both since they both use the same magazine


^^^This^^^

I prefer my Glock 32 in .357 Sig, but no flies on the Sig handguns in that caliber either.

I’ve owned FNH pistols in 9mm & 45 acp and they were great guns too.
Posted By: UPhiker Re: .357 sig or .40 sw - 03/26/20
I just bought a P239 in 357 3 weeksago but it was a "just because" purchase. I'd wanted one for around 15 years. When things started getting stupid, I bought two boxes of fmj and two of Gold Dots, just in case.
Posted By: Borchardt Re: .357 sig or .40 sw - 03/26/20
Originally Posted by jwp475


357 Sig in Underwood ammo gets some serious velocity 1475 to 1500 FPS with 125 grain bullets.

An extra barrel means you can have both since they both use the same magazine


I don't believe the Underwood ammo is loaded to SAAMI specs. Increased pressure = slide and frame stress and trouble, especially if warranties are involved.
Posted By: jwp475 Re: .357 sig or .40 sw - 03/26/20
Originally Posted by Borchardt
Originally Posted by jwp475


357 Sig in Underwood ammo gets some serious velocity 1475 to 1500 FPS with 125 grain bullets.

An extra barrel means you can have both since they both use the same magazine


I don't believe the Underwood ammo is loaded to SAAMI specs. Increased pressure = slide and frame stress and trouble, especially if warranties are involved.



The 357 Sig was designed to shoot a 125 grain bullet 145pFPS many are now down loading the Sig. Inderwood loads the 357 Dog to 40,000 PSI
Posted By: jwp475 Re: .357 sig or .40 sw - 03/26/20


https://en.wikipedia.org/wiki/.357_SIG
Posted By: WTM45 Re: .357 sig or .40 sw - 03/26/20
I did not like the report of the .357 SIG.
.40S&W has been ok for me for a while.


Posted By: local_dirt Re: .357 sig or .40 sw - 03/26/20
Originally Posted by Borchardt
Originally Posted by jwp475


357 Sig in Underwood ammo gets some serious velocity 1475 to 1500 FPS with 125 grain bullets.

An extra barrel means you can have both since they both use the same magazine


I don't believe the Underwood ammo is loaded to SAAMI specs. Increased pressure = slide and frame stress and trouble, especially if warranties are involved.




They definitely are on other ammo I've asked them about. Specifically, 10 mm and .45 acp. Talked to them and Glock.
Posted By: NH K9 Re: .357 sig or .40 sw - 03/26/20
Buy the .357 Sig and get a .40 barrel to have on hand.

The correct answer is always ‘both’ in this scenario!
Posted By: viking Re: .357 sig or .40 sw - 03/26/20
Originally Posted by NH K9
Buy the .357 Sig and get a .40 barrel to have on hand.

The correct answer is always ‘both’ in this scenario!



And a 9mm conversion barrel. At least that’s how my G35 is set up.
Posted By: RoninPhx Re: .357 sig or .40 sw - 03/26/20
years ago i bought a glock 23, and immediately a barsto .357sig barrel. shot more sig in it than i ever did .4 0.
never a baubble.
Posted By: Waders Re: .357 sig or .40 sw - 03/26/20
Originally Posted by RoninPhx
years ago i bought a glock 23, and immediately a barsto .357sig barrel. shot more sig in it than i ever did .40.
never a baubble.


Same here--sort of. I bought a G23 and a 9mm barrel. The gun has never fired a round of .40, just 9mm.

As to the original question, I'm in the same camp as those that say buy the .357 and the extra barrel(s). Options are never bad...
No way I'm handloading a bottle necked pistol round in mass quantities!

.40 for me!

Mike
Posted By: winchester70 Re: .357 sig or .40 sw - 03/26/20
.40 S&W
Posted By: gunner500 Re: .357 sig or .40 sw - 03/27/20
Originally Posted by NH K9
Buy the .357 Sig and get a .40 barrel to have on hand.

The correct answer is always ‘both’ in this scenario!


Correct, though me being 180 off from that, I'm looking for a 357 Sig barrel for my P226 40, I think it'll be a fun loading and shooting project, 90gr Lehigh Defenders at 16-1700 fps cant suck.
Posted By: MontanaMarine Re: .357 sig or .40 sw - 03/27/20
I went 40SW, but have accumulated alternate barrels in 357 Sig, and 9mm.
Posted By: night_owl Re: .357 sig or .40 sw - 03/27/20
Since both the 40 S&W and 357 Sig have similar case capacities, when loaded to practical Max. (not SAAMI) and fired in the same gun, the 40 S&W will produce more energy than the .357 Sig. because of the 40's greater cross section.
Posted By: gunner500 Re: .357 sig or .40 sw - 03/27/20
Originally Posted by MontanaMarine
I went 40SW, but have accumulated alternate barrels in 357 Sig, and 9mm.



Nice! I was whining to a Bud about not being able to find a P226 barrel in 357 Sig, he was certain he could get a Bud of his to pull me a barrel from one of his 357's, I said thanks but i'll wait, I may be a whiner, but wont be vag enough to ask a man to pull a barrel from his pistol just so I can play around, life or death, different deal, YES, sell me 10 complete pistols! smile
Originally Posted by arky65
Looking to get a new edc. I want higher magazine capacity than the 1911 officers, I carry now.

Looking at the SIG and FNH compact models.

I will handload.

What say youse guy's?


Hands down, .40 S&W. It may be out of fashion now, a bit, but .357 Sig makes it looks like the popular choice by comparison, which means it's going to be expensive feeding your .357 Sig habit by comparison.
Posted By: David_Walter Re: .357 sig or .40 sw - 03/27/20
The 357 Sig doesn’t offer much over the 9mm +P+ if at all, and any G19 or 17 can handle +P+

The 40 offers a heavier payload.
Posted By: MontanaMan Re: .357 sig or .40 sw - 03/27/20
While both rounds are good, I don't want either of them in a "compact" model gun.

If you want a compact, get a 9mm & thank me later.................it will do all you need with good ammo.

The Sig 229 Legion SAO is my everyday carry & I think it might be the best pistol I've ever owned (and I own a dozen 1911's).

If you insist on the 357 or a 40, than buy a full sized gun of your choice; mine would be the Sig 226 Legion full size in 40. As someome said earlier, I don't want to be loading bottleneck pistol rounds in any volume.

The 40 in a bigger gun is a very good round & offer the option of some heavy bullets.

JMHO, YMMV

MM
Posted By: jwp475 Re: .357 sig or .40 sw - 03/28/20
Originally Posted by David_Walter
The 357 Sig doesn’t offer much over the 9mm +P+ if at all, and any G19 or 17 can handle +P+

The 40 offers a heavier payload.


When loaded to it's designed velocity of 1450 FPS the 357 Sig is significantly more than a 9MMS +P+
Posted By: Yondering Re: .357 sig or .40 sw - 03/28/20
Originally Posted by David_Walter
The 357 Sig doesn’t offer much over the 9mm +P+ if at all, and any G19 or 17 can handle +P+

The 40 offers a heavier payload.


David, that's not really correct. Obviously numbers vary a lot depending who's data you use and what bullet weight, but with good max loads in both the 357 Sig will do 250-350 fps more in similar barrel length. I base that on my own experience as well as published numbers.

Thevelocity difference between +P+ 9mm and 357 Sig is enough that the 357 needs to use tougher bullets (when we're talking about hollow points) to avoid blowing up and shallow penetration. For example, Speer's 125gr Gold Dot bullet made for the 357 Sig; the standard 9mm version is pretty much at it's limits at ~1300 fps muzzle velocity.
Posted By: jwp475 Re: .357 sig or .40 sw - 03/28/20
Originally Posted by Yondering
Originally Posted by David_Walter
The 357 Sig doesn’t offer much over the 9mm +P+ if at all, and any G19 or 17 can handle +P+

The 40 offers a heavier payload.


David, that's not really correct. Obviously numbers vary a lot depending who's data you use and what bullet weight, but with good max loads in both the 357 Sig will do 250-350 fps more in similar barrel length. I base that on my own experience as well as published numbers.

Thevelocity difference between +P+ 9mm and 357 Sig is enough that the 357 needs to use tougher bullets (when we're talking about hollow points) to avoid blowing up and shallow penetration. For example, Speer's 125gr Gold Dot bullet made for the 357 Sig; the standard 9mm version is pretty much at it's limits at ~1300 fps muzzle velocity.



The 357 Sig does indeed need tougher bullets
Posted By: TX35W Re: .357 sig or .40 sw - 03/28/20
They are very different to shoot. .357 Sig is way barkier and snappier, even when not loaded to max. You should probably shoot both before you make a choice.
Posted By: Nate40 Re: .357 sig or .40 sw - 03/28/20
.40, it proven itself time and again on the streets and ammo availability leans to the 40 as well
Posted By: viking Re: .357 sig or .40 sw - 03/28/20
Yeah, the ammo availability thing is a problem for the Sig. although I see it more than say the 38 super.
Posted By: jwp475 Re: .357 sig or .40 sw - 03/28/20

No shortage of 357 Sig ammo at my LGS. I choose the 357 Sig over the 40 S&W. The 357 Sig at 1450 is a bad ass'ed round
Posted By: OldRooster Re: .357 sig or .40 sw - 03/28/20
Originally Posted by jwp475

No shortage of 357 Sig ammo at my LGS. I choose the 357 Sig over the 40 S&W. The 357 Sig at 1450 is a bad ass'ed round


I agree with this. It’s an excellent round and I find ammunition when I need it, both fmj and personal defense. A double stack .357 is the cat’s whiskers. It performs.
Originally Posted by gunner500
Originally Posted by MontanaMarine
I went 40SW, but have accumulated alternate barrels in 357 Sig, and 9mm.



Nice! I was whining to a Bud about not being able to find a P226 barrel in 357 Sig, he was certain he could get a Bud of his to pull me a barrel from one of his 357's, I said thanks but i'll wait, I may be a whiner, but wont be vag enough to ask a man to pull a barrel from his pistol just so I can play around, life or death, different deal, YES, sell me 10 complete pistols! smile


Gunner500, I have a P226 in 40 and 357, and if you weren’t aware, a .22 conversion kit is available also; or was. It’s the most accurate 22 pistol I’ve ever had.
Posted By: gunner500 Re: .357 sig or .40 sw - 03/29/20
Dang, Thanks George, good to know, now another project in the workings! smile
Posted By: ldholton Re: .357 sig or .40 sw - 03/29/20
357 sig hands down for my vote
Posted By: northcountry Re: .357 sig or .40 sw - 03/29/20
Try a 9X25 Dillon if you want something with "legs"it is way out in front of the 357 Sig.Just saying. Yes Underwood loads for it. Yes I have one. Cheers NC
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