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Discussion Starter · #1 · (Edited)
Fortunately folks around here seem to give smart answers.

I have an older, 2005 or so factory electroless nickel P229 in .40. My first sig....I know I can drop a .357 barrel in and be good to go.

I also know my M11A1 is born and will stay a 9, so that's that.

I'm curious about experience with the .40 to 9mm, is the conversion a reasonably close equivalent to a factory born 9mm? I'm thinking a p226 .40 or .357 SSE with three barrels would be a blast since I don't have a p226. I just am curious if I want to shoot 9mm half the time If I'm going to wish I had just bought a 9.

Are there any instances of issues with slide damage or "stuff" with the conversion barrels other than the .40/.357? Sure hate to screw up my p229.

Has anyone tried the .400 Corbon in a P220? Could be fun.....

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P226 Multiple Calibers

I bought my P226 as a .22LR and added X-change kits for 9mm and .357SIG. I then bought a .40S&W barrel to go with the .357SIG slide. Then I put an RMR on the 9mm slide. The 9mm barrel works on the .357SIG slide, but the .357SIG and .40S&W only work on the .357SIG slide. If you want to shoot 9mm, .357SIG and .40S&W on a P226, get one in either .357SIG or .40S&W and add the appropriate barrels. Shooting four different calibers from one frame is a hoot. My old eyes love the RMR on the 9mm slide for distance shooting, but I use my P226 as my home defense gun in .357SIG with night sights. If all hell breaaks loose, it will be at close range.
 

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If you want to shoot 9mm, .357 and .40 out of the same pistol get either a P224, P226 P229C or P239 since those pistols can be converted by just swaping the barrels, mags and recoil spring (.357 and .40 are sharing the mags and recoil springs though, the P239 needs caliber specific mags unless you just go for range fun, then .40 mags will do it all). I would recommend to start with a .357 pistol because .357 and 9mm will have the same sights (#8 front and rear) because both calibers have about the same trajectory. If you shoot .40 with a .357 slide your POI will go up a bit so you have to adjust your sight picture and aim a bit lower. IMHO that's easier than aiming a bit higher which would be the case when you shoot the .357 and 9mm out of a .40 slide with #6 front and #8 rear sights.
That's why I'm gonna change the front sights from #6 to #8 on my P229 and my wife's P239 which both came in .40 and got recently converted to .357 with SIG OEM barrels.
 

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Discussion Starter · #5 ·
Thanks guys, good info, so all of you find the barsto barrel conversion t 9mm from .357 to be as good as a "born in the factory" 9?.

Provided the sights are correct of course....


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Steel hat has the right of it.
My 2 239s are a little different because of my days as a bullseye shooter.
I have #8 front sights, and # 10 rears.
At 15 yds. A 3X5 card, stapled vertically is perforated by all 3 calibers, from a 6 :00 hold.
Don't need it better then that.
 
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