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Miscellaneous Firearms => Handguns => Topic started by: Wolfie on April 22 2016 04:43:21 PM MDT

Title: Sig .357 Nightmare .40 caliber conversion
Post by: Wolfie on April 22 2016 04:43:21 PM MDT
Sent my 357 to Sig for the 40 conversion. Took this to the range and fired 50 Federal Aluminum and 50 Federal Brass in 40 with no issues.

Sig did this very well.
Title: Re: Sig .357 Nightmare .40 caliber conversion
Post by: The_Shadow on April 22 2016 06:02:10 PM MDT
Sounds good is it just a conversion?  Can you still swap to the 357Sig as well?
Title: Re: Sig .357 Nightmare .40 caliber conversion
Post by: Wolfie on April 22 2016 06:09:28 PM MDT
Just a barrel swap, everything else worked. Ran 100 rounds of 40 swapped out the barrel back to 357 and ran 50 rounds with no problems at all.

They fit and supply the barrel for $200 and $50 for shipping.

Title: Re: Sig .357 Nightmare .40 caliber conversion
Post by: hink10mm on September 09 2016 07:06:22 PM MDT
I purchased a 357sig barrel for my P226 in .40.  I've read that they sometimes need fitting but I dropped it in and it went bang 100x in a row. 
Title: Re: Sig .357 Nightmare .40 caliber conversion
Post by: The_Shadow on September 09 2016 07:46:56 PM MDT
hink10mm, Welcome to the forum!  Yep having the added advantage of swapping barrels can make for some interesting scenarios when push comes to shove!

Best regards!  :D
Title: Re: Sig .357 Nightmare .40 caliber conversion
Post by: kilibreaux on October 11 2016 05:53:12 AM MDT
Most 357 Sig leaves a LOT to be desired.  Why run a bottleneck cartridge pushing a puny 125 grain slug when you can run a full-diameter ".40" with a 135 grain, 155 grain, 165 grain, or 180 grain option?  Also, unless you buy true performance ammo that you actually chronograph, chances are the crap you buy for the 357 Sig is barely more potent than the 9mm!

Title: Re: Sig .357 Nightmare .40 caliber conversion
Post by: jeffreybehr on October 11 2016 11:37:43 AM MDT
Quote from: Wolfie on April 22 2016 04:43:21 PM MDT
Sent my 357 to Sig for the 40 conversion. Took this to the range and fired 50 Federal Aluminum and 50 Federal Brass in 40 with no issues.

Sig did this very well.

...uhh...what's the nightmare?