40 to 357sig questions?

[Dmashowtime]

I just picked up a NIB Sig p226 extreme in 40 from one of my buddies who needed some quick cash. He was telling me that all I need to do to shoot 357sig is to replace the 40cal barrel with a 357sig barrel and I can swap back and forth between. I liked the idea of being able to shoot both and just have an extra barrel in my case. I did a quick search and found a bit of information but was still unsure about a few things.

Does the recoil spring needs replaced?

Anything else I need to know or do?

Anyone with experience and knowledge on this would be greatly appriciated to share.

-Frank

[ST911]

Most systems are a simple barrel swap, but I would check with the manufacturer to make sure.

[Dmashowtime]

Most systems are a simple barrel swap, but I would check with the manufacturer to make sure.

Yeah, I tried calling Sig yesterday but got called into work before I got a hold of anyone. Will try again today just to make sure. Thanks!

[JW5219]

I just picked up a NIB Sig p226 extreme in 40 from one of my buddies who needed some quick cash. He was telling me that all I need to do to shoot 357sig is to replace the 40cal barrel with a 357sig barrel and I can swap back and forth between. .

Does the recoil spring needs replaced?

Anything else I need to know or do?

Anyone with experience and knowledge on this would be greatly appriciated to share.

-Frank

He is correct. All you need is a .357 sig barrel and you don't need to replace the recoil spring or do anything else. I had the same set up at one time.
Good luck!

[BUBBAGUNS]

I did the same thing to my 226. I also have a 9mm conversion barrel as well. I use the 40 cal recoil spring for all three barrels. Also I would not call sig, call lonewolf since they manufacture the barrels.

[dpadams6]

All the same, including mags. The only difference in the sig p series is the 239. Those are mag specific.

Sent from my SCH-I535 using Tapatalk

[kevN]

I ran a P229 in .40 & .357sig with just changing barrels.

[GJM]

.357 Sig in 226/229 typically regulates with 9mm height sights (8/8 Sig, HD for 9mm), where the .40 typically regulates with 6/8 Sig (or 220/.229 marked HD sights with slightly taller front sight.)

[Omen]

I too have a 229 that I run in both 40 and 357 SIG. No need to change anything but the barrel. POI can change between the barrels but that's about it.

[rathos]

sights will be off. A .40 has a #6 front and #8 rear. a .357 sig or 9mm has #8 front and a #8 rear. As long as you adjust for the different point of aim you will be fine.

[Dmashowtime]

Did not know about the sights being different. Thanks! I just got off with sig and they gave me 20% off on a 357 barrel and some extra mags.

[Talon167]

As others have mentioned, you just need a new barrel. At one point, Sig sold their 40s with an additional 357S barrel.

[williejc]

For my HK P2000 357 sig I bought a factory 40 S&W and swap them back and forth without issue. Oddly, the gun "shoots better" with the 40 S&W barrel, but this perception is subjective. There is a small difference between the lips of the two factory mags, but both function in either caliber.

If you shop around, you may find a less than retail deal on the Sig factory barrel.

[Devildawg2531]

Besides being harder to find ammo what does the 357 sig do better than 40 ?

[williejc]

Devildawg, from a practical standpoint, the 357 sig offers nothing that the 40 won't do. With proper ammo the sig round, the 9mm, and the 40 s&w are in the same effectiveness category according to some experts. It seems that cops who have used the 357 sig in actual shootings have reported that it does indeed put the bad guy down. Texas DPS adopted it years ago because according to them, it did not bounce off windshields. Higher ammo costs, increased recoil and blast, higher wear and tear on weapons, and increased training time have been cited as drawbacks for this caliber.

I bought my HK in this caliber because the pistol was previously owned but unfired, and the price was $400. I couldn't pass it up

[rathos]

doesn't drop as much at a distance as .40, and I feel like it has less recoil, but that is my perception, so it could be off. But, you could do the same thing by shooting some +P+ 9mm, and of course 9mm is a lot cheaper to shoot. One of the biggest upsides is being able to find cheaper used pistols in this caliber as most PDs are dumping larger calibers and going to 9mm. If you are a reloader you can save a lot of money by using .40 brass and getting a shaping die. I was able to get a ton of .40 from some local ranges were some cops shoot and saved myself a ton of cash though with the .357 sig pressures I can usually only reload it once.

[Harrier]

I shot my P226 last month with both barrels to compare the recoil. Ammo was WWB for both: 125gr FMJ for .357 and 180gr FMJ for .40. Subjectively, the .357 had maybe a bit more recoil—and the video seems the bear that out—but there was less difference that I expected.


http://youtu.be/xWixM456gUQ