Ammunition & Hand Loading > General Ammunition Discussion

.223 VS 5.56 There Is A Differance

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Rich B:

--- Quote from: schoolcop on March 25, 2009, 09:37:07 AM ---What is the point of having a gun that would only shoot .223? Why not get one made for 5.56 and then be able to shoot both cals.?

--- End quote ---

5.56 chambers are slightly larger than .223 chambers and this generally has a negative affect on accuracy.  For most shooters and most guns, the loss of accuracy isn't very noticeable.  For match shooters, it does make a difference.


--- Quote from: schoolcop on March 25, 2009, 09:37:07 AM ---Why do bullets have such odd measurements? Instead of 5.56, why not 5.5 or 6.0? Same with 7.62, why not just 7.5?  I don't get the odd diameters.

--- End quote ---
"Because."

There is no good reason.  In fact, there's more insanity...  .38 Special shoots a .357 caliber bullet.  7.62x39 and 7.62x51 shoot .310" and .308" bullets, respectively.  The .223 Rem actually uses a .224 bullet.  The .22 Long Rifle (.22LR) is chambered in pistols.

Cartridges might as well be named Harry, Sam, and Lou. 

JimP:

--- Quote from: schoolcop on March 25, 2009, 09:37:07 AM --- Hatchet1961, do you have the actual pressure measurements for 5.56 and .223? I'm curious as to how much of a difference there is.

--- End quote ---

I'm not Hatchet, but I have an answer for you:


http://www.frfrogspad.com/miscelld.htm#5.56%20mm%20NATO

Fatherfrog's is a gold mine of shootystuff related information (Lotsa Col. Cooper stuff there!)

Happy reading!

schoolcop:
Good stuff, thanks.

DJPeter:
Thanks for the schooling.

JimP:
I didn't teach anyone here anything....just pointed the way to a library...... Thank Jay for putting this site up, and Fr. Frog for his!

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