Go | New | Find | Notify | Tools | Reply |
Member |
My preferred pistol, cartridge combination is the P229 in .357SIG. Since SIG has stopped making the P229 in .40/.357SIG, I have heard from a few people (who have questionable firearms knowledge) that a 9mm P229 can be converted to .40 or .357SIG with just a barrel and magazine swap (direct drop in , no milling). I could have sworn, somewhere on this forum, I read that it could be done, but that milling and fitment was required. I tried searching for the thread where I thought I read this, but I couldn't find it. My current P229 has over 30,000rnds through it. It would be great if I could buy a 9mm P229, drop in a barrel, and continue to carry .357SIG. I have been trying out a FNX45 and have been pleased with carrying it, so far, but my P229 definitely conceals better, and I believe the projectile geometry of the .357SIG at velocity is a better option all around than the 160gr Barnes cartridges from Buffalo Bore I'm carrying in my FNX. I'm using the Buffalo Bore 125gr@1425fps or Speer GD 125gr for the .357SIG. I apologize if this has been addressed and answered. I swore I read something about this somewhere, I just couldn't find it. | ||
|
Member |
If I understand correctly, it sounds like you want to go from .357SIG to 9mm and not vice versa. Bar-sto makes a conversion barrel that allows you to do this. Per their description you will also need a 9mm magazine and maybe a lighter recoil spring: BAR-STO Sig P-229 Conversion Barrel | |||
|
Member |
I believe you'll need a .357/.40 slide. The barrel diameters are different. Or get an aftermarket conversion barrel. I'm not sure if you'll need a different locking block. 9mm to .357 . | |||
|
Freethinker |
The differences between a 357/40 P229 and the original* 9mm version: The 357/40 slide is heavier and a less powerful recoil spring might be necessary for reliable functioning if a 9mm conversion barrel is used with the slide. The 357/40 magazine well is wider and although a 9mm magazine will probably lock into place, it will be loose and that might—might—affect reliability. A factory 9mm P229 barrel will not work in a 357/40 slide because it is smaller in outside diameter. Plus the barrel hood extension of the 9mm barrel is narrower (as I recall). Putting a complete 9mm P229 slide assembly on a 357/40 frame won’t work because the locking insert is different. As I recall, though, 9mm conversion barrels made to work with 357/40 pistols usually are configured to work with the 357/40 locking insert—but I’m not certain. I seem to remember that ejectors for 9mm and 357/40 P229s are different, but I’ve never heard of that’s ever being a problem. I know of no way to convert a 9mm P229 to 357 except to use a complete slide assembly, and then there would/might be problems with the magazines because a 357/40 mag won’t fit into the magwell of the 9mm. That might not be true if your 9mm was a P229-1 because the magazine well is wider and will accept the wider 357/40 mags. But although I don’t know for certain, I suspect that because the P229-1 probably uses the original style 9mm barrels, the locking insert would probably have to be changed, and assuming that would be possible. *Some of these differences were changed with the 9mm P229-1. Added: In rereading your post, I probably didn't answer your question directly, but I assume it's more or less clear. ► 6.4/93.6 | |||
|
Member |
You can go from 40 to 9mm, but not the other way. | |||
|
Powered by Social Strata |
Please Wait. Your request is being processed... |