DIFFERENCES in 9mm & .38 SUPER 1911?? - Gun Hub
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Old 10-14-2018, 03:13 PM   #1
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DIFFERENCES in 9mm & .38 SUPER 1911??

Friends/Series 70 EXPERTS,

As several folks here know, we are seriously considering retiring to Latin America in 2019 & for that reason I'm seeking a 1911 in .38 Super for EDC down there.

This PM, a forum member of another site asked me WHY I didn't buy his Series 70 in 9mm & simply put a .38 Super barrel on it. = As the price is "quite reasonable", I'm asking the 1911 EXPERTS here what parts, IF ANY, other than the barrel & magazines need to be changed to convert the 9x19 to .38 Super.
(Inasmuch as I'm a southpaw, I also earlier in the week bought a NOS ambidextrous safety for 32.oo for whatever 1911 that I do purchase.)

yours, sw
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Old 10-14-2018, 03:56 PM   #2
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The brass case of the .38 Super is very slightly longer but other dimensions are similar as both it and 9mm Luger both use a bullet .355" in diameter. The .38 does move the bullet along at a faster pace and would be my choice in countries were the .45ACP were not allowed. There was a reason the Ranger were so fond of the round.

If the 1911 is fairly new I would have no qualms in doing a barrel swap.

Last edited by csmkersh; 10-14-2018 at 03:59 PM.
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Old 10-14-2018, 05:07 PM   #3
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THANKS, CSM.

yours, sw
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Old 10-14-2018, 07:52 PM   #4
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Check the laws. If the receiver is marked 9mm it might not be legal even with a different barrel
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Old 10-15-2018, 03:07 AM   #5
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Laws in South America are highly "variable" as too many expats found out.
Geoff
Who suggests being VERY VERY CAREFUL.
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Old 10-15-2018, 04:25 AM   #6
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phantom4570; Skeptic49; All,

NO caliber marking on the pistol, so that's NOT a problem.
(The barrel that I will be using, if I do the modification, has .38 Super stamped over the chamber.)
Also, one major reason that we are moving to that particular nation is the large number of friends that I have in the upper ranks of the military establishment & the National Police.

Btw, most of the Latin American (and at least FOUR Asian nations) nations are ACTIVELY RECRUITING retired American police & military personnel to retire in their countries.
(We retirees have stable pensions, don't cause trouble, generally end up hiring local nationals for various tasks & many open businesses in their new home.)

To All: I was hoping to be advised HOW to convert the handgun to .38 Super, rather than getting advice on whether I should or not.
As many REAL EXPERTS as we have as members, I feel that at least ONE member actually KNOWS what is required.

yours, sw

Last edited by stand watie; 10-15-2018 at 04:29 AM. Reason: add
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Old 10-15-2018, 07:20 AM   #8
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Snake45,

WOW. THANKS for the help!!!

yours, sw
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Old 10-15-2018, 08:51 AM   #9
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Quote:
Originally Posted by stand watie View Post
Snake45,

WOW. THANKS for the help!!!

yours, sw
Glad to help, since your google seemed to be broken.

I didn't read every word, but I scanned some and gist seems to be no major problems, check your extractor (might not be a bad idea to procure a couple extra .38 Super extractors in any event), and might require a different ejector depending on whether your mags have a space block in the back.
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Old 10-15-2018, 10:27 AM   #10
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Snake45,


THANKS again. - The THANKS was actually for you going to the trouble of sending me all those links.

What I was hoping for was that one or more of our REAL EXPERTS on the 1911 handguns would agree with what a person on the 24 hour campfire stated that, "All that necessary is changing the barrel & mags."
OR
That he/they would tell me that "The process is: _________________________."
OR
"Not worth doing."

Pardon me for pointing out that the advice that one gets on our forum is SUPERIOR to most (and perhaps 95%) of what's on the Worldwide-WEIRD. = Over the years, I've found our members to be 99% correct & the forum to be absent silliness/foolishness/ignorance/mindless blather/idle gossip/what someone read someplace/flame wars/etc.


yours, sw
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Old 10-15-2018, 12:21 PM   #11
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This would be right up Charlie's alley... anyone heard from him lately?
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Old 10-16-2018, 01:06 PM   #12
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I posted a lengthy reply but it disappeared.




i am having nothing but trouble with the new club website
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Old 10-16-2018, 03:00 PM   #13
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Make sure your barrel headspaces on the case mouth, not the excuse for a rim. Other than that, magazines. The idea of changing the extractor has some merit as does having spares, but the factory extractors in either caliber seem to work. You might check the part number for the firing pin & recoil springs to see if there's any change there if you're planning on exploring the higher performance loads.

I'd check the part numbers for you, but I've moved enough that some of that stuff seems to have crawled off and hid. The Brownell's skematics might take care of that. I do recall the firing pin is different than for the .45......which brings up a question, if the slide has no caliber, I'd check the size of the firing pin hole in the breech face...
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Old 10-16-2018, 03:35 PM   #14
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I think Springfield for a while was using 9mm/.38S (same part) pins even on .45s, part of their "passive inertial safety" system combining light pin and heavy spring so a half-cock drop wouldn't move the pin.

If it's an Open Carry Permissive environment and I can't have .45, I'd be thinking of building a threaded-barrel Longslide in either .38 Super or 10mm, depending on ammo supply-chain. (Not so much for a can, as the threaded barrel buys me an extra 3/4" of barrel length... though if cans are cool I'd be packin' one of those too, just not mounted.) Hmmm... need to contact Ted Blocker and see if they can modify the Deppinger Rig to be optics-friendly.

Last edited by Diamondback; 10-16-2018 at 03:39 PM.
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Old 10-16-2018, 03:38 PM   #15
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To All,


My most SINCERE THANKS to everyone, who responded to my query.

Fwiw, www.classicfirearms.com has put their RIA version of their "GI" & "more or less" Government Model ON SALE for 398.oo, which is less than buying the 9mm handgun, .38 Super barrel AND 2 magazines.
(The MSRP is nearly 500.oo.)

Inasmuch as most everyone who has bought one of those (and my experience with my lady's kid brother's RIA in .45ACP works FINE,) seems to like it, that seems to me to be at least a reasonably smart buy.

Fitting the RIA in .38 Super with my ambidexterous safety, my GOOD GM grips & possibly doing a "trigger job" on the handgun should be FINE for SD.

THANKS AGAIN, sw

Last edited by stand watie; 10-16-2018 at 03:52 PM. Reason: addenda
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Old 10-16-2018, 03:41 PM   #16
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SW, wish I actually coulda BEEN some help rather than just spitballing ideas and being part of the Commentariat. Pretty sure most of you guys here have forgotten more than I KNOW...
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Old 10-16-2018, 04:13 PM   #17
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Quote:
Originally Posted by William R. Moore View Post
...if the slide has no caliber, I'd check the size of the firing pin hole in the breech face...
If I'm not mistaken, the extractor and ejector cuts would be different in a 9mm/.38S slide vs .45, too, wouldn't they?
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Old 10-16-2018, 04:23 PM   #18
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A little offtopic, but anybody ever try out the ATI FX45's? I started looking at the Rock, then noticed that the ATI has my preferred MSH and grip-safety tang straight-from box, so my "What's The Catch" radar started to light up.
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Old 10-16-2018, 05:48 PM   #19
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Perhaps it's best if you looked up the Commercial Loadings for the .38 Super.
https://www.midwayusa.com/s?targetLo...ItemsPerPage=0

Just because anything other than a commercial load wouldn't be kosher in a court of law in the US, or even any other spot. Delve deep prior to laying your fate on a court of law.

Still, it's better to be tried by 12 than carried by 6. JMHO
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Old 10-16-2018, 05:59 PM   #20
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Quote:
Originally Posted by M118LR View Post
Perhaps it's best if you looked up the Commercial Loadings for the .38 Super. Just because anything other than a commercial load wouldn't be kosher in a court of law in the US, or even any other spot. Delve deep prior to laying your fate on a court of law.

Still, it's better to be tried by 12 than carried by 6. JMHO
Why would it be illegal to use hand loads? Is that the law in Florida?
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