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California handguns Discuss your favorite California handgun technical and related questions here. |
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#1
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Glock 22 to 357 SIG conversion, recoil spring upgrade?
I've been wanting to bite the bullet on a Storm Lake 357 SIG conversion barrel. I've got a former sherrif buddy coworker who has talked me into it.
Easy enough, but I've read that it might be a good idea to upgrade the recoil spring? I have the gut feeling that it's not going to matter much on the Glock, and maybe those are actually same part #'s between the 22 and 31. Maybe I should run it and try it and if I have issues swap out the spring for a more stout unit? Gen 3 btw. |
#3
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Glock 17/22 have the same spring. Different part # for inventory. It it’s the exact spring.
So if the meek 9mm spring can handle hot 40, you should be fine with the .357 sig. +1 on it being a dead caliber
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Rule 1- ALL GUNS ARE ALWAYS LOADED Rule 2 -NEVER LET THE MUZZLE COVER ANYTHING YOU ARE NOT PREPARED TO DESTROY (including your hands and legs) Rule 3 -KEEP YOUR FINGER OFF THE TRIGGER UNTIL YOUR SIGHTS ARE ON THE TARGET Rule 4 -BE SURE OF YOUR TARGET AND WHAT IS BEYOND IT (thanks to Jeff Cooper) |
#6
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Factory spring tensions for the Glock 22 & 31 are the same at 17lbs, you should be just fine.
Don’t listen to the guy above OP, if you want to shoot .357 DO IT! I swear some people here are like the Dems of the gun world. It’s their way or no way, and they know whats best, like a bunch of Pelosi’s... |
#9
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357 sig is a lot like 10mm cost, if you shop or order at the wrong places it's more expensive. In premium ammo it can be had for the same price as .40 0r 45.
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#10
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Aren't you special.
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#11
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This was my plan. Buy a few boxes to shoot and have the brass. I guess I could also get a resize die and neck down some of the ton of 40 brass I have.
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#12
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Quote:
.357 Sig is a necked down and trimmed 10mm casing. The casing will be too short using the .40 brass. |
#13
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Ahhh. Good to know. Thanks. Guess I'll stock up fresh brass.
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#14
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Quote:
Reloading can be a PITA but can be done. Ive had good results on a turret press but its a ***** on a progressive. Its one of my favorite calibers and i shoot a lot. Of course i like 10 mm also. I guess i am an idiot or something. Too many clowns around here anymore.
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I support peace through superior firepower. "Para ser libre, un hombre debe tener tres cosas, la tierra, una educacion y un fusil. Siempre un fusil ! (To be free, a man must have three things; land, an education and a rifle. Always a rifle)" -Emiliano Zapata. |
#15
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10mm uses large pistol primers. a lil pricey to do as 10mm brass cost more than 40/357 sig
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#16
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Quote:
The bullet is 9mm dimensions and the 357 SIG can support up to 180gr. or something like that? |
#17
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Quote:
Yes, you are correct. I should've clarified that the design was based on the 10mm casing, but 10mm casing is not 100% suitable for producing the round although many have successfully done so. My point was to clarify the internet myth that it is "loosely" based on the .40S&W. It seems closer to the 9x25 Dillon that actually used the 10mm casing to me. Some folks have successfully used the .40 casing to produce .357Sig also, however the slightly shorter length can produce improper crimping and pressures. It was a highly debated topic at one point. Probably still is. I will concur that buying/finding brass would be the best way to go. Here's an interesting thread though: http://10mm-firearms.com/wildcats/357-sig-long-neck/ Last edited by code_blue; 01-17-2019 at 1:52 AM.. |
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