American and Foreign 9mm Different??
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Old 06-08-2012, 06:17 PM   #1
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Default American and Foreign 9mm Different??

Ive noticed that American made 9mm's have a taper at the base but foreign made ones have a straight case.... Why would this be??

If I buy a brand like Remington or Winchester it wont fit my Medusa, but Seller & Bellot and Fiocchi fit great?? (Exception: I have a old box of 40's-era Remington 9mm and it fits???)

Whats the deal??

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Old 06-09-2012, 08:32 PM   #2
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Originally Posted by Trez View Post
Ive noticed that American made 9mm's have a taper at the base but foreign made ones have a straight case.... Why would this be??

If I buy a brand like Remington or Winchester it wont fit my Medusa, but Seller & Bellot and Fiocchi fit great?? (Exception: I have a old box of 40's-era Remington 9mm and it fits???)

Whats the deal??
Let google be your friend http://en.wikipedia.org/wiki/9x19mm_Parabellum
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Old 06-09-2012, 10:12 PM   #3
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What was I suppose to see, I didnt see anything that told me?

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Old 06-10-2012, 12:00 AM   #4
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Case dimensions are the same.

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Old 06-10-2012, 02:55 AM   #5
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ALL 9mm Parabellum has a taper to the cartridge case. And made in the Americas, Europe, or Asia, has the same dimensions.

Euro is typically loaded a bit hotter than American.

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Old 06-10-2012, 05:21 AM   #6
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If all 9x19mm dimensions are the same, why do some fit and others dont?
Winchester, new Remington, and Federals consistently DONT fit, but S&B and Fiocchi consistently DO fit...

Heres pics:
Winchester & Federal not fitting in my cylinder - but the S&B does..

107_6060.jpg  
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Old 06-10-2012, 05:23 AM   #7
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Another pic:
New Remington not fitting, 40's era Remington that does fit..

107_6061.jpg  
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Old 06-11-2012, 12:38 AM   #8
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There are two other possibilities,one is that not all 9mm brass is the same thickness it can vary as much as .003" between brands. If you revolver chambers have vary tight tolerances it possible that case dimension is giving you the problems. I have a Ruger 9mm revolver and anything I fired in it both hand loads as well as factory ammo drops right in. I have had on a few occasions a few rds. that were tight but they did push in with a little thumb pressure.

You might want to mic each one of your cylinders as well as several brands of loaded ammo at the web and see where the difference is.

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Old 06-15-2012, 01:24 AM   #9
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Default Tolerance is not liking people from other countries...

All manufacturing and all manufacturers require 'tolerances'. That is to say, there is some difference in measurements from one brand to another and from one lot to another. This includes both firearms and ammunition.

Most of the time it all works fairly well, once in a while one finds a firearm of 'minimum' size' and ammunition of 'maximum' size. Then it doesn't fit right.

Such is life.

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Old 06-15-2012, 02:26 AM   #10
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Have you checked to see if it is just certain chambers or does it occur in all the chambers? This seems like a gun problem not an ammo problem. Does the same ammo fit chambers in other guns?

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