10 mm LITE
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Old 01-27-2012, 08:11 PM   #1
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Default 10 mm LITE

Wouldn't it be a good idea that ammo makers would sell 10 mm LITE bullets (The FBI load wich performance was reproduced by the 40 S & W caliber) , so that way you could buy 10 mm pistols and use this powered down and full power loads the same way you could use 38 special cartridges in a 357 magnum revolver?
This way you could shoot 10 mm or 40 s & w reduced recoil and power like rounds off the same gun
Or is this being done already?

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Old 01-27-2012, 09:20 PM   #2
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The current 10mm loads are not like the original Norma loads. They have been downloaded some already.

When I was competing with the 10mm, I loaded the 180gr SWC to shoot approx 1000' per second. This gave me a power factor of 180 for IPSC. Accuracy was great, recoil was manageable.
Federal 180FMJ has a reported velocity of 1030 FPS.

Use the IPSC power factor formula of (bullet weight) X (FPS) / 1000 = (PF)

Using the Federal .45ACP 230gr bullet X 890 fps / 1000 = a Power Factor of 204.7
Using the Federal 10mm 180gr FMJ X 1030 FPS / 1000 = a Power Factor of 185.4

my source for ballistics: http://www.ballistics101.com

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Old 01-27-2012, 11:40 PM   #3
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But I bet 10 mm commercial ammo hasn't been been downloaded that much.
If the data I'm reading is not wrong a 180 g 10 mm bullet will travel at 1350 ft/s against the 1050 ft/s from a .40 S & W, with a 10 mm cartridge loaded to achieve .40 S & W performance ,one could have the best of both worlds and choose the load according to one's need. I wonder if recoil springs in a 10 mm pistol is too hard for a lighter load to move though.

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Old 01-28-2012, 12:41 AM   #4
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Using my source, there are other loads that do exceed the 1030 FPS.

I was showing the OP that there are loads out there that could be considered "lite".

Even the Blazer 180gr 10mm is faster than the stated 1030 FPS from Federal.

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Old 01-28-2012, 12:50 AM   #5
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Default Actually, most commercial 10mm ammo is quite a bit under powered...

compared to the original loads by Norma. If memory serves me correctly, the original load from Norma was a 200 grain bullet at 1300fps from a five in barrel. The hottest current commercial load that I am aware of is the Winchester Silvertip, a 175 grain bullet at an advertised 1275fps. Many, if not most, are well below this.

Just doing some quick searching found this web site. Check it out...

http://ballistics101.com/10mm.php

There are a few loadings from companies such as Double Tap and Buffalo bore that are true powerhouses, but many loads barely outperform 40 S&W by any appreciable degree.

JW

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Old 01-28-2012, 12:51 AM   #6
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Danf ,my bad when I read your first reply, so there are already 10 mm rounds that travel at 40 speed ranges , like the Federal you used at 1030 ft/s , so as far as you know you are indeed shooting a "LITE " load, this could be the answer for my original post, having a 10 mm round with the mild recoil of the 40 for SD for example and the possibility of using hotter full load rounds for hunting .

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Old 01-28-2012, 12:56 AM   #7
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Quote:
Originally Posted by CubDriver451 View Post
compared to the original loads by Norma. If memory serves me correctly, the original load from Norma was a 200 grain bullet at 1300fps from a five in barrel. The hottest current commercial load that I am aware of is the Winchester Silvertip, a 175 grain bullet at an advertised 1275fps. Many, if not most, are well below this.

Just doing some quick searching found this web site. Check it out...

http://ballistics101.com/10mm.php

There are a few loadings from companies such as Double Tap and Buffalo bore that are true powerhouses, but many loads barely outperform 40 S&W by any appreciable degree.

JW
So I guess it kind of makes sense to buy a 10 mm pistol instead of a .40 since you have 10 mm rounds that behave pretty much as a .40 one.
I always thought that any 10 mm was way more powerful than any 40 but it seems I was wrong. Thanks
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Old 01-28-2012, 01:29 AM   #8
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Quote:
Originally Posted by kcolg View Post
I always thought that any 10 mm was way more powerful than any 40 but it seems I was wrong. Thanks
ehh......


40 WILL NEVER be able to attain what a 10mm will, neither will 45 ACP.

My IDPA loads in 10mm are 155gr tmj running about 840 fps(130 power factor). Theyre pu$$ycats compared to 40, even some 9mm.

But I can go the otherway and make a 180gr run about 1200fps (215 power factor) and make 40 look like a 22.

its the perfect reloaders round.
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Old 01-28-2012, 02:11 AM   #9
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I have one of the original test Pistols for the FBI. I run it w/ 175..180gr all the time. Cast lead are cheap to load. They hum pretty good w/ a 5" barrel.

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Old 01-28-2012, 02:53 AM   #10
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Just look for 10mm ammo labled "subsonic". That IS the 10mm lite you are referring to. Winchester has a 180 grain subsonic and a 175 grain supersonic (1290fps).

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