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Posted: 12/29/2021 3:44:18 PM EDT
Any thoughts on +P 9mm in a Colt 1911. Nothing in my manual...
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Posted: 12/29/2021 3:50:11 PM EDT
[#1]
the candle that burns twice as hot, burns a lot shorter
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KY, USA
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Posted: 12/29/2021 4:45:38 PM EDT
[#2]
Plenty of hot 9’s of various flavors have been run through JMB’s classic 1911 design.
.38 Supers have been hot rodded for almost a century, and the 9x23mm Winchester has been around over 2 decades. Lots of conventional 9x19 and 9x19 +p, also 9 Major. Barrel life will be shorter, obviously, but the design is plenty capable of handling conventional +p cartridges. |
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Posted: 12/29/2021 7:13:27 PM EDT
[Last Edit: RSM]
[#3]
Thanks. Kinda what I figured. Locally there is a lot more +P defensive ammunition on shelves right now than standard pressure. Just don't want a kaboom.
(Listed pressure is about 2,000 PSI higher than 38 super.) |
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Posted: 12/29/2021 7:33:21 PM EDT
[#4]
Proper weighted recoil spring and supported barrel, no issue with the design, after all, the design will handle 10mm. Barrel life will be fine, lot's of meat and you still aren't even close to what good barrel steel will handle.
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Posted: 12/30/2021 3:54:50 PM EDT
[#5]
Quote HistoryOriginally Posted By fxntime: Proper weighted recoil spring and supported barrel, no issue with the design, after all, the design will handle 10mm. Barrel life will be fine, lot's of meat and you still aren't even close to what good barrel steel will handle. That's the answer I was hoping for although +P 9mm is still 1,000 psi over 10mm! |
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TX, USA
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Posted: 1/12/2022 10:11:12 PM EDT
[#6]
Quote HistoryOriginally Posted By DrafterDan: the candle that burns twice as hot, burns a lot shorter Hmm…. What has that got to do with the OP’s post? Maybe move your response to the candle forum! 
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Posted: 1/12/2022 10:30:49 PM EDT
[#7]
There is not a factory loaded 9mm I wouldn’t trust in a 1911. The only difference between a 9mm and a 38 super is ejector and barrel. Spring rates are the same from the factory.
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Posted: 1/12/2022 10:53:39 PM EDT
[#8]
9mm +p should slide right through the .45 caliber barrel of a real 1911.
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Posted: 1/24/2022 1:45:52 PM EDT
[#9]
Quote HistoryOriginally Posted By Gunnie357: There is not a factory loaded 9mm I wouldn’t trust in a 1911. The only difference between a 9mm and a 38 super is ejector and barrel. Spring rates are the same from the factory. Reassuring! |
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Posted: 1/24/2022 1:55:31 PM EDT
[#10]
Quote HistoryOriginally Posted By RSM: That's the answer I was hoping for although +P 9mm is still 1,000 psi over 10mm! More psi, but less square inches. Lower overall thrust. |
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Posted: 1/25/2022 2:09:28 PM EDT
[#11]
Quote HistoryOriginally Posted By HeavyMetal: More psi, but less square inches. Lower overall thrust. Great point that I totally missed. Embarrassing for a guy with a 458 SOCOM... 
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