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.357 Sig as carry round


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Old 12-08-2016, 04:25 PM   #1
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Default .357 Sig as carry round

So I have a P320c in 9mm but was thinking about buying the caliber exchange kit and switching it over to the 357Sig round for carry.
I think (that I know) that this round is similar to a .38Super as far as pressure goes, but other than that I am not really familiar with it. I was wondering if anyone has any experience with it as a carry round from the standpoint of feeding issues etc...
It is a bottlenecked round, so for those who have shot this round - any issues with feeding or reliability in Sig pistols?
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Old 12-08-2016, 05:37 PM   #2
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I don't run it in a Sig but have a S&W M&P that I run in .40 S&W and .357 Sig with a simple barrel swap. The .357 Sig has a more rapid recoil impulse that the .40 round but really doesn't actually seem to kick any harder. It is considerably louder or has a sharper report. Never had a feed or function issue with .40 or .357 Sig. most factory loadings are not actually as hot as the round was initially designed to function at, but Cor-bon, Underwood and a few other manufacturers will load it as it was intended to be.

Cost and availability of ammo are the big detractors. 9mm runs well under $20 per box for range ammo, and .40 does also now. .357 Sig has run me close to $30 per box fro range ammo.

IT can't be too bad as a defensive round as several LE agencies adopted it and have run it for a long time. Accelerated pistol wear was noted by some agencies and they stepped down to .40 or 9mm. Since it is a Sig round the P229 (which was built around the .40 and .357Sig round) and thee .320 should be rated to handle the round.
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Old 12-08-2016, 07:41 PM   #3
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Quote:
Originally Posted by SSGN_Doc View Post
I don't run it in a Sig but have a S&W M&P that I run in .40 S&W and .357 Sig with a simple barrel swap. The .357 Sig has a more rapid recoil impulse that the .40 round but really doesn't actually seem to kick any harder. It is considerably louder or has a sharper report. Never had a feed or function issue with .40 or .357 Sig. most factory loadings are not actually as hot as the round was initially designed to function at, but Cor-bon, Underwood and a few other manufacturers will load it as it was intended to be.

Cost and availability of ammo are the big detractors. 9mm runs well under $20 per box for range ammo, and .40 does also now. .357 Sig has run me close to $30 per box fro range ammo.

IT can't be too bad as a defensive round as several LE agencies adopted it and have run it for a long time. Accelerated pistol wear was noted by some agencies and they stepped down to .40 or 9mm. Since it is a Sig round the P229 (which was built around the .40 and .357Sig round) and thee .320 should be rated to handle the round.
Thank you very much for the info!!
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Old 12-08-2016, 07:45 PM   #4
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My 9 shooting the 127 GR Win +P+ clocks at 1285. How much more will you get with the 357 Sig??? Nuff said!
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Old 12-08-2016, 07:50 PM   #5
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The .357 Sig is a mild to moderate jump in performance over the +p 9mm. Mild or moderate increase depends on ammo selection, as mentioned above.
I would add Double Tap to the list of suppliers as well. Their 125 gr load is serious business.
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Old 12-08-2016, 07:58 PM   #6
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Here is Wiley Clapp's cut on it.
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Old 12-08-2016, 09:35 PM   #7
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There is so little actual difference between the .357 SIG and 9MM+P+, it isn't worth it IMHO?

More cost, more flash,more blast, more recoil and little gain..
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Old 12-09-2016, 08:41 PM   #8
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Quote:
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Thank you - I enjoyed reading that & it was just what I was after!
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Old 12-09-2016, 08:59 PM   #9
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I am with Locutus on this issue!
Not saying the SIG 357 is not a good round. But as was stated a good 9MM +P+ is every bit as good. And also as was stated, the availibity and location of ammunition at various stores could be an issue. But the main thing is the difference in the cost of any practice ammunition and self defense ammunition compared to the cost of 9mm there is no comparison. As locutus mention, IMO as well it is not worth it. But it obviously is a personal preference and decision.

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Old 12-09-2016, 09:16 PM   #10
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I too was wondering about the 357 Sig. Price for practice ammo. Brass cases. It pays to hand load the 357 Sig. Corbon is pushing a 40 S&W 135 grain JHP at 1366 fps from a 4" barrel. their 125 grain 357 Sig is running 1410 fps from a 4" barrel.
9mm $0.20-
40 $0.25+
357S $0.35+
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