.556 ammo in .223 rifle - feedback

Sqr said:
Ok sarcasm is on .....I get it.

I do have one question regarding the NATO 7.62 vs 308 comment tho. Are you insisting that the NATO round or is the 308 more potent?
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lol no sarcasm, just a reference to an amusing thread from a couple years back. I forgot tactical rifle enthusiasts and battle rifle folks don't always find the same things funny *shrug*

is there a difference? Of course there is, and I think you would have to look long and hard for a horse that's been more thoroughly beaten.

But a Remington 700 isn't a chamber-sleeved 308 conversion, Comission Mauser with .318 bore or m14 with a flexy oprod where firing the wrong ammunition can cause expensive issues.

If the round chambers properly, ejects properly and there are no overt pressure signs, rinse and repeat.

šŸ˜‰
 
I don't own one but is a mini 14 chambered in 223 or 5.56. My young neighbour just bought one and a case of Chinese 556.
 
homeboy1 said:
I don't own one but is a mini 14 chambered in 223 or 5.56. My young neighbour just bought one and a case of Chinese 556.
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The newer 582 series are all "5.56mm" chambered.
Mine has it right on the barrel stamped "5.56mm"
Even if it was a .223 Rem, I would still be shooting 5.56 in it for cheap bulk pack Federal ammo and Norinco.
Shoot a round check the brass. If good, shoot a few more rounds and check the brass. Then have at 'er. That's been my approach to shooting 5.56mm in the many .223 Rem rifles I've owned over the years and not a single issue yet.
 
Suther said:
You can blame the manufacturers for that, among other sources. Savage says don't use 556 in their 223 stamped barrels, for instance...
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lol Well the Savage Stevens 200 and the Savage Axis (both of which I own) have seen a diet of literally hundreds of rounds of 5.56 ammo. Probably closer to 1000 on the 200 but I did sell it a year back or so.
From old US LC surplus to modern 5.56mm American Eagle bulk pack to straight up Norinco 5.56mm out of the crate.
No issues. No brass overpressure signs, no degradation of accuracy over the years. Maybe but you would have to measure it in 1/8's of an inch because I don't notice it.
Now I'm feeding it through my Rem 700 Tac with well over 200 rounds in.
There are some military cartridges (ie black hills MK262 5.56mm 77gr) that could cause very high pressure spikes because it's a hot loaded long range heavy projectile round. But you won't find it up here in Canada for sale anywhere anyway. Or maybe a high pressure proof test 5.56mm cartridge but again you won't find them up here legally for purchase to public.
It's a non issue. It exists on paper. I haven't seen, owned or heard of any off the shelf commercial rifle having any issues with it after all these years of internet commandos parroting what they read instead of actually trying it and realizing it's a non issue.
Did you ever personally shoot any through a .223 Rem chamber Sir?
 
Suther said:
I have not, nor did i make any claim as to the validity of this argument 1 way or another. I was just pointing out one (of many most likely) source for this misinformation.
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Ack.
There's always many many people saying not to do it but 99% of them have never actually done it even once and have only read about it on internet forums full of opinions from the exact same group of people lol
 
Travis Bickle said:
Ack.
There's always many many people saying not to do it but 99% of them have never actually done it even once and have only read about it on internet forums full of opinions from the exact same group of people lol
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To clarify, i haven't done it because I don't have a 223. Not because I'm concerned about the consequences.
 
lets stay on point if you haven't done it this doesn't help me one bit.

I have some .556 ammo sitting here from my XCR-L I sold and I still have a newer model Rem 700 ACC-SD in .223 and if I can used this .556 I'd like to burn it so I can use the brass for reloading later.
hence why I was asking my question, for the most part the replies are a go.
 
Brocolt said:
I have some .556 ammo sitting here from my XCR-L I sold and I still have a newer model Rem 700 ACC-SD in .223 and if I can used this .556 I'd like to burn it so I can use the brass for reloading later.
hence why I was asking my question, for the most part the replies are a go.
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Brocolt,

Buddy fear not. Go to range and fire away. 223 and 5.56 are perfectly interchangeable.

This 223/5.56 thing is just an urban legend that gets repeated by fools to scare the newby. Some un-insightful fools (who may be lawyers reviewing SAMMI Spec) actually believe it, please don't join them.

The difference between the case dimensions are done with 5.56 to make the military ammo tougher and more tolerant of mud dirt and water. That's it. Nothing more.

Go ahead and fire 5.56 in a 223 and fire away with 223 in a 5.56 rifle.

You will be perfectly safe.

I've been hand loading for 35 years and could provide about 50 reasons why this fear is absurd, buts its too ridiculous to waste the effort doing it.
 
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BadAsMo said:
Brocolt,

Buddy fear not. Go to range and fire away. 223 and 5.56 are perfectly interchangeable.

This 223/5.56 thing is just an urban legend that gets repeated by fools to scare the newby. Some un-insightful fools (who may be lawyers reviewing SAMMI Spec) actually believe it, please don't join them.

The difference between the case dimensions are done with 5.56 to make the military ammo tougher and more tolerant of mud dirt and water. That's it. Nothing more.

Go ahead and fire 5.56 in a 223 and fire away with 223 in a 5.56 rifle.

You will be perfectly safe.

I've been hand loading for 35 years and could provide about 50 reasons why this fear is absurd, buts its too ridiculous to waste the effort doing it.
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This is good info for people like me who don't reload yet. There's some pretty good deals out there for 5.56 ammo especially in bulk.

I was allways under the impression your average 5.56 round was loaded hotter than the .223 and using it in a gun like my rem700 HB varmint increased wear on the gun and was risky.

I'm not really a hunter and mostly a target guy so the advantage of being able to use 5.56 ammo will be great if this is true.
 
Brocolt said:
lets stay on point if you haven't done it this doesn't help me one bit.

I have some .556 ammo sitting here from my XCR-L I sold and I still have a newer model Rem 700 ACC-SD in .223 and if I can used this .556 I'd like to burn it so I can use the brass for reloading later.
hence why I was asking my question, for the most part the replies are a go.
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I am currently shooting 5.56mm Green Tip 62gr exclusively through my 700 Tac in .223 like I said before.
Up to well over 300 rounds now.
Go ahead Sir. Trust me, you will be fine!
 
Travis Bickle said:
The newer 582 series are all "5.56mm" chambered.
Mine has it right on the barrel stamped "5.56mm"
Even if it was a .223 Rem, I would still be shooting 5.56 in it for cheap bulk pack Federal ammo and Norinco.
Shoot a round check the brass. If good, shoot a few more rounds and check the brass. Then have at 'er. That's been my approach to shooting 5.56mm in the many .223 Rem rifles I've owned over the years and not a single issue yet.
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My Target model says specifically 223 only. My Ranch 556.
 
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