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Old March 18th, 2011, 10:27   #556
EagleDriver
 
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Originally Posted by Rugger_can View Post
You sir are confusing Caliber with diameter expressed in millimeters they do not mean the same thing. Caliber is the decimal expression of inches of the internal diameter of a rifled barrel measured from the groves (usually) expressed in the unit Caliber or cl.


The diameter of a .223 Caliber round when expressed in millimeters is 5.56mm. It is not called a 5.56mm Caliber round.

It is a common misunderstanding.
You sir are confusing the vernacular with a technical notation. Caliber is a unit-less measurement of the bullet diameter, not barrel. The actual barrel of a .223 rifle is larger than .223 inches in order to allow the bullet to travel through it. (Same reason why we don't have 5.97mm to 6.00mm airsoft barrels.)

It is common to express caliber in imperial measurements, but not required.

Last edited by EagleDriver; March 18th, 2011 at 10:33..
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Old March 29th, 2011, 05:28   #557
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Quote:
Originally Posted by EagleDriver View Post
You sir are confusing the vernacular with a technical notation. Caliber is a unit-less measurement of the bullet diameter, not barrel. The actual barrel of a .223 rifle is larger than .223 inches in order to allow the bullet to travel through it. (Same reason why we don't have 5.97mm to 6.00mm airsoft barrels.)

It is common to express caliber in imperial measurements, but not required.

First off. No, it is not a measure of a bullets diameter. It is in fact a measure of either the lands or grooves (depending on the convention of that country or area or manufacturer) of the rifling of a barrel. The use of Caliber as a descriptor expressed in MM is a trend and has allowed the word to be interchangeable with diameter (again relative to the lands or grooves) which is acceptable but technically incorrect.

You also fail to understand the physics of firearms and how rifling works and you demonstrate this by comparing a modern firearms barrel to that of a smooth bore airsoft inner barrel. I highly suggest you hit your local library and read a little bit about what actually happens as a bullet is squeezed through the barrel.



Also I've now proved my point three times and I feel that this is getting off topic.


I wish a company would re-release the spectre M4. I loved it when I first saw it in a SOF rag as a kid but the FTC version was never avaliable round here.

Cheers.
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Old March 29th, 2011, 14:02   #558
EagleDriver
 
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http://www.merriam-webster.com/dictionary/caliber

Definition of CALIBER
1
a : degree of mental capacity or moral quality b : degree of excellence or importance
2
a : the diameter of a bullet or other projectile b : the diameter of a bore of a gun usually expressed in hundredths or thousandths of an inch and typically written as a decimal fraction <.32 caliber>

3
: the diameter of a round or cylindrical body; especially : the internal diameter of a hollow cylinder



So I am assuming Webster's dictionary is wrong here too?

Then you will love these - even though it's Wikipedia: http://en.wikipedia.org/wiki/9_mm_caliber http://en.wikipedia.org/wiki/Categor...rms_by_calibre


The reason that a Desert Eagle in .50 will not properly fire a .45 ACP is that the cartridge is rimless, so the headspace is at the front of the chamber. Without proper fitment of a rimless cartridge it is possible that the firing pin could not even strike the primer with enough force to ignite it. A rimmed cartridge has headspace at the rear, which is why you can fire a .22 short out of a .22 long rifle weapon.

Thermodynamics makes a bullet and cartridge expand. The expanded cartridge seals the rear of the chamber forcing all of the gases to expel to the front. The bullet is also heated and expanded while traveling through the barrel. If they were the same diameter it would become stuck, and the gases would pass by via the rifling.

But I think I just have to stop the conversation here. You have no understanding of firearms and it seems that there is no educating you.

Last edited by EagleDriver; March 29th, 2011 at 14:33..
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Old March 29th, 2011, 16:11   #559
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Keltec RFB .308

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Old March 29th, 2011, 17:05   #560
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^^

super sexy, buy that in a hearbeat.
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Old March 29th, 2011, 18:03   #561
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Keltec RFB .308

Someone's living out a Halo Reach fantasy :P
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Old March 29th, 2011, 18:05   #562
R.I.T.Z
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Someone's living out a Halo Reach fantasy :P
or not... not everything is videogame based
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Old March 29th, 2011, 18:07   #563
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Another thing is that magazines wouldn't be too hard to find as the real one uses FN FAL magazines already.
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Old March 29th, 2011, 18:21   #564
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or not... not everything is videogame based
it's just a joke...
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Old March 29th, 2011, 19:36   #565
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Keltec RFB .308

I'm a bullpup whore and I find it ugly!
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So you're saying we cannot engage in a hobby once we are older?

Children these days.
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Old March 29th, 2011, 20:35   #566
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I'd love to see a C9A2
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Old March 29th, 2011, 22:28   #567
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Keltec RFB .308

Unfortunally there doesnt seem to be much room for a gearbox.
Looks soo bad ass..
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Old March 30th, 2011, 04:51   #568
Jayne Finch
 
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dont think its been done yet

Desert Tactical Arms Stealth Recon Scout (SRS) sniper rifle



BARRETT MRAD .338 LAPUA MAG



lwrc tricon (to be honest all i want is that barrel)



SPIKE’S TACTICAL BIOHAZARD EDW 6.8 SPC



new saiga (just 'cus)



i think thats it.......
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Old March 30th, 2011, 06:19   #569
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Originally Posted by EagleDriver View Post
But I think I just have to stop the conversation here. You have no understanding of firearms and it seems that there is no educating you.
Click here

No you can't educate me, but maybe you can educate yourself.

I wish to apologize for this thread derailment and I ask that if Eagle Driver has any further need to discuss this he do so with me in PM and not clutter up this thread with massive pictures in an attempt to insult me.


As for the thread..

What is up with the barrel on that LWRC? Is that for better heat dissipation or jjust for sho? It is pretty damn strange.
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Old March 31st, 2011, 04:58   #570
Jayne Finch
 
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if by strange you mean awesome. then yes its strange. and i'm awesome.

if i remember the article correctly they did it to increase the surface area of the barrel for heat dispersal.
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