.223 Vs. 5.56

[TexRebel]

I keep hearing folks ask if 5.56 can be shot in a .223 here is the best answer I have found;
http://www.winchester.com/lawenforcement/news/newsview.aspx?storyid=11

I hope this clears up any more questions

[Alchemist]

Good link, Tex Rebel....goes to show that things ain't always what they seem to be.

I discovered the difference when I fired a round of surplus M193 in my Ruger M77...smoke rose out of the bolt, and sure enough-a pierced primer. That prompted me to find out what was going on.

If in doubt, check it out!

[wolfspotter]

Thanks Texrebel. Here's some more info for the 223-5.56 shooters.

http://www.razoreye.net/mirror/ammo-oracle/AR15_com_Ammo_Oracle_Mirror.htm#milammo

[xyrth]

perfect link. i now have a link to hand out instead of spending 10 minutes explaining it. thanks.

[Jim]

Two VERY helpful sites. Thanks, Guys!

[HATCH]

I always set headspace based on a 5.56x45 not the 223.
I don't know what the surplus market will offer so I try to cover all bases.

[Echo]

Wow. Good links.

[scrapcan]

This discussion also extends to the 7.62x51 and the 308 winchester. they are not the same either. If someone has some quick links that could be a good set also. I have some but not handy, but at home.

[handyrandyrc]

What makes the .308/7.62NATO thing interesting, is that it's the other way around. .308 Winchester runs much higher pressure than a 7.62 NATO round. Whereas 5.56 runs higher pressure than .223, and has a shorter throat.

[badgeredd]

Thanks guys,
I need to print both articles and give them to a gun shop owner near my home. He is one of those guys that knows all you ever wanted to ask and more:-D:-D but I guess this might help him distinquish that a 5.56 does NOT need special ammo. Thanks agin!:roll:

[Sprue]

..... and another

http://www.ammo-oracle.com/

[PhotoDominant]

the problem is,,,,,,,,,, that it depends on what ammunition you are running in the 5.56 label.

ORIGINAL M193 IS the original SAAMI .223 Remington. Hence if its loaded to ACTUAL MILITARY SPECIFICACTION FOR M193, its .223 Remington.

However civilian companies can decide which of the 3 5.56 pressure limits to use. SO its easy to get 62 grain fmj loaded to original M194 pressure. And to get M193 loaded to 62 grain chamber pressure.

Oddly enough there has never been an issue with using the higher pressure stuff in original 5.56 barrels from vietnam

[Lloyd Smale]

ive ran them both in bolt guns and Ars and never had a single issue doing it. Now that was just two bolt guns. A 700 varmint and a old tang safety ruger 77v. Never even a flatten primer. Now the 308x 762 thing did show its face to me. When I had my cetme it would run nato ammo with it lower pressure and harder brass fine. With comerical ammo at higher pressures using softer brass it would about destroy cases on the first firing and even tore the case head off of one on occasion. You for sure didn't want to use factory ammo as once fired brass in it. Youd get about 50 percent case splitling or case head separation. Even if the brass made the trip it looked so ragged with those chamber lines down it that youd be afraid to reload it. But use nato level ammo and that thing ran like a sewing machine.

[oldred]

Good info but be aware this is an ELEVEN year old thread.

[NSB]

Zombie thread.....links don't work and it's a waste of time at this point.

[Smoke4320]

Rick Grimes where are you .. you got some zombies to kill