5.56 & 223

>>32157421
The angle of the photo makes it seem smaller the .223 is farther away from the camera

It's the case dimensions that matter. Those could be different loadings and projectiles. I hope that's not you in the photo.

>>32157421
Overall length may differ, it's not an issue as long as the case length is the same.
Case dimensions vs chamber dimensions are what matters for fit, bullet length/overall length don't matter as much.

>>32157421
Projectile weight has some tolerance. You can easily find 77gr to 50gr loads in either cartridge.
5.56x45 is just hotter ammo. Only difference.

>>32157457
No i don't think that's the case. i took the picture and they are right next to each other it looks the same as when im holding them in my hand

>>32157507
Why are you hanging with rejects like in the photo

>>32157421
556 flews twice as fast as 223 despite being lower pressure.
It's because of the cryogenic diffusion heat treat that the bullets get. The 556 round goes from 650 grains to 55 grains in the course of a day or two.
This quantum refraction assures excellent performance that surpasses all know quantifiable metrics

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>>32157482
Wrong.

This is the easiest way to fuck up your AR. Putting 223 in when it only accepts 5.56 and visa versa

>>32157580
wat

>>32157482
this. even case length can be a little different depending on the leade/ throat of a particular rifle.

>>32157580
I get that. i guess my question is why is the projectile smaller on the 223 when they are supposedly supposed to be the same dimensions

>>32157580
......... what is this

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>>32157580
>>32157608
The trolls are here.

>>32157608
Im fairly certain that it is ok to shoot 223 out of a rifle that is chambered for 556 but its not ok to shoot 556 out of a rifle that is chambered for 223. am i wrong?

>>32157613
You just got memed on.

>>32157608
Read the posts more carefully, fucktard.

>>32157580
Wait are these real things?
How does temperature affect the density of metal?

>>32157580
So 556 is superior then?
I can't find any of these things on google

>>32157421
OP, do you regret dropping out of school?

No surprise a stupid fuck like you couldn't use google and find your answer.

.223 is the DIAMETER of the bullet. Both are EXACTLY THE FUCKING SAME DIAMETER. One may be longer, weigh more, or have a different ogive, but that's besides the fucking point.

You have no business with a firearm.

>>32157718
>So 556 is superior then?
That's one way to look at it, I guess. If you're looking for long distance heavy loads, go .223 though.

>>32157746
Dafuq is wrong with you? It's a valid question for one that may not be familiar with that kind of stuff.

5.56 has a slightly sloppier chamber than .223. Unless your .223 chamber is tight as fuck and you shoot max pressure 5.56 loads through it regularly there isn't really a problem. Funny enough, some 5.56 chambers are tighter than .223 chambers. Go figure.

If you can just get a .223 Wylde by somebody who knows what they're doing and give zero fucks. Or a 5.56, whatever.

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>>32157746
Best answer yet. thanks anon. i don't regret dropping out of school to build race trucks no.