Loading data for the 9mm Win Magnum |
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Trigger 
180 Auto Mag 
Joined: 19 Jun 2010 Location: Mass Status: Offline Points: 47 |
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 Topic: Loading data for the 9mm Win MagnumPosted: 22 Feb 2026 at 9:24pm |
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Hey anyone have Reloading’s data for the 9mm Win Mag cartridge?
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Pantera Mike
Callahan's Auto Mag 
Joined: 20 Jan 2018 Status: Offline Points: 1007 |
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Posted: 24 Feb 2026 at 12:13am |
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Yeats ago I stumbled across some data. I have no idea who generated it or how safe or unsafe it might be. I don’t have a 9mm Win Mag and have ZERO experience with it so take the following with a HUGE grain of salt:
 The second image with more data won’t upload. Hang on…. |
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Pantera Mike
Callahan's Auto Mag
Joined: 20 Jan 2018 Status: Offline Points: 1007 |
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Posted: 24 Feb 2026 at 12:16am |
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Rumore
Callahan's Auto Mag
Joined: 14 Nov 2008 Location: Inola, OK Status: Offline Points: 524 |
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Posted: 24 Feb 2026 at 12:32pm |
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That looks like the John Taffin (Taffin Tests) data. See link. Tony Rumore Tromix
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Run it up, until you blow it up, then back it down a bit.
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AMT addict
International Auto Mag 
Joined: 05 Jan 2024 Location: Oklahoma Status: Offline Points: 152 |
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Posted: 24 Feb 2026 at 8:02pm |
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I have several thousand rounds of new brass to load but I have yet to load any of it yet. There is a IAI currently on broker with all original papers. This is info that came with the gun so it should be a perfect load..
 
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