9mm vs 10mm
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9mm vs 10mm


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Old 10-16-2007, 03:47 PM   #1
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Default 9mm vs 10mm

Whats the difference between 9mm and 10mm rounds (besides the difference of 1 millimeter)? Do they have the same uses or different uses?
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Old 10-16-2007, 04:46 PM   #2
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Default 9 vs 10

The two are light years apart. Far more than the 1mm numerical difference. The standard 9mm load of a 115 gr JHP of FMJ at 1200 fps or so is a minor caliber round. 9mm's can run from 90 gr up to 147 grains. 950-1400 fps.

The 10 mm is a major caliber round. Standard load of a subsonic 180 grain JHP @ 1000 fps is designed to replicate one of the better .45 ACP loadings. the 10 mm can be loaded with bullets as light as 135 gr @1500+ fps up to 180 gr JHP's @ 1300 fps. With that load it will exceed .357 magnum capabilities and approach many .41 mag loads.

The 9mm is a fine defensive round for a concealed handgun. The 10mm is a powerful cartridge for a full size pistol, not for the faint of heart.

I have both and they each have a niche in my carry selection.
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Old 10-17-2007, 12:06 AM   #3
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Bear in mind that the 9mm is no more than a +P .38 Special with light bullets. That's really not impressive for some of us.

The .40 ain't no .45 ACP but it's sure better than an autoloading .38 Special.
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Old 10-17-2007, 12:24 AM   #4
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When my son-inlaw got his CCW permit he ask my advice and I said nothing less than the .40 S&W. Personally I like revolvers and go with the PD 329 S&W. That`s a supper lite .44 mag., but what it lacks in weight it makles up for in recoil. But I really don`t mind it as I like to know I`ve only got to hit them once.
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Old 10-18-2007, 10:37 PM   #5
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Catfish, you spoke well. I too prefer the power of a revolver for hunting, but my 6" M29 ain't no conceiled carry piece! For social events I prefer my 1911A1 under a loose fitting jacket.
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Old 10-24-2007, 11:48 AM   #6
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I have heard f a lot of problem in the 1911 with the 10mm round because of the higher presure it tends to batter it up rather good. I heard also that the glock does rather well with the 10mm.

I seen a Colt DE 10mm blued 90+% at a gun show about two months ago for $650. I should have bought that sucker.
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Old 10-24-2007, 01:31 PM   #7
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Default 10mm

The Colt auto's in 10mm tend to be under sprung ie they need a stronger recoil spring to reduce the battering. With recoil springs strong enough to handle the high powered loads, the Colt's do not run well with the FBI "light" ammo. Go with a "Sprinco Recoil reducer" they will keep the slide from battering the frame. My 1006 sports one and runs great.

A DE 10mm for $650? That's a steal. Even though I do not care for the DE.
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Old 11-01-2007, 01:12 PM   #8
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Default 9mm vs 10mm

Well, I guess you get the idea now two way differant rounds, I love my GLOCK 20 and would not trade it for any other semi-auto the 10 mm rules!!!
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Old 06-02-2011, 04:55 AM   #9
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I have a 10mm Glock and love it, only complaint would be the cost of shooting it. I can always by a .40 cal barrel and tension spring and just convert it
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Old 06-02-2011, 10:30 AM   #10
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Anyone bringing up a dead post from 2007 has to by the forum a beer (or Dr Pepper in some cases)
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