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Posted: 7/18/2017 9:59:09 PM EDT
[#1]
Why didn't you get the G35 if you want to shoot .40S&W out of it?
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Posted: 7/18/2017 10:07:57 PM EDT
[#2]
KKM
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Posted: 7/18/2017 10:09:07 PM EDT
[#3]
Why? 10mm is best mm.
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Posted: 7/18/2017 10:30:38 PM EDT
[#4]
Quote HistoryQuoted:
Why? 10mm is best mm. ETA: Recoil in the Gen4 G20 is so nice. Not snappy like the 9mm's I have and not quite the same push as my 1911 and weights a half that the 1911 does as it is all metal. Very easy to control. |
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Posted: 7/18/2017 10:57:31 PM EDT
[#5]
.40 S&W is 10mm. Just shorter and weaker.
 I have watched guys shoot .40 out of a stock 10mm with no ill effects. The analogy I was given was shoot .40 out of a 10mm like you shoot .38 out of a .357. I don't know that I would do it, but I have seen it done.
YMMV |
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Posted: 7/18/2017 11:37:51 PM EDT
[#6]
You don't want a .40 barrel. Buffalo Bore 220gr only
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Posted: 7/19/2017 12:47:41 AM EDT
[#7]
Quote HistoryQuoted:
You don't want a .40 barrel. Buffalo Bore 220gr only |
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Posted: 7/19/2017 9:58:49 AM EDT
[#8]
Why shoot .40 in a 10mm?
Congrats on the G40 BTW. It's one of my favorite. Very accurate. |
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Posted: 7/19/2017 10:35:39 AM EDT
[#9]
I've shot .40 out of a bone stock 29 I used to have. Ran just fine with factory 10mm mags. Headspaces off extractor though
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Posted: 7/19/2017 10:38:17 AM EDT
[#10]
I'm sending a GSSF certificate in for one this week. I'm hoping to have it before deer season.
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Posted: 7/19/2017 3:50:55 PM EDT
[#11]
been very happy with mine, especially since it came back from jagerwerks. Just need to throw some nice sights on it to finish the build off.
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Posted: 7/19/2017 11:35:20 PM EDT
[#12]
Thanks guys, for all the input. All the Busting chops had me laughing too. I chose the g40 because I wanted the mega large frame gun. Additionally I wanted a 10mm. I want a .40 barrel just to have, as I have a butt load of ammo. Thanks Again.
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Posted: 7/20/2017 7:10:22 AM EDT
[#13]
Read this thread on Glocktalk. A guy name WeeWllly explains why the 10mm doesn't need a .40 barrel to shoot .40
https://www.glocktalk.com/threads/now-ive-went-and-bought-a-g20sf.1663574 |
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Posted: 7/26/2017 4:29:27 PM EDT
[#14]
Both 38 special and 357 mag headspace off the case rim, which is the same between the cartridges.
40S&W and 10mm both headspace off the case mouth, which changes between the cartridges. Though I'm sure it works because enough people have done it. I have a KKM barrel in 40S&W. I didn't want to put the extra stress on my extractor on a pistol I'll also be using for woods carry protection. So I got the new barrel. I don't always stand in the same spot when shooting pistols. Sometimes I'm even running. My G40 is the only centerfire cartridge pistol I have with a red dot. If I ever wanted to shoot it in a local competition for fun, didn't want to lose all of that expensive 10mm brass. I have SO MUCH 40S&W brass stockpiled. It just made sense for me to get that barrel for my G40. I agree, 10mm is the best millimeter. Some may even call it a centimeter. ;) |
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Posted: 7/26/2017 10:38:16 PM EDT
[#15]
Quote HistoryQuoted:
Both 38 special and 357 mag headspace off the case rim, which is the same between the cartridges. I've got a .40 barrel for my G29, but rarely use it. |
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Posted: 7/26/2017 11:21:44 PM EDT
[#16]
Brass length varies... what happens to the .40 S&W case that is shorter than the SAMMI spec when it is supposed to headspace on the case mouth?
A: You never notice it because it happens all the time. |
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Posted: 7/27/2017 10:55:16 PM EDT
[#17]
Buy a .40 barrel if you want it, KKM makes the best barrels in my opinion. The barrel is the only truly safe way to do it, I would never advocate shooting .40 out of a 10mm barrel because the only thing hold the cartridge in place is the extractor, so it's doing a job it was never intended to do. The .40 conversion barrel makes it safe.
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