Found .223 Rem of 5.56 cartridge!!

[74man]

This morning I found a rusted either a .223 Rem of a 5.56 Nato cartridge (had an + inside a circle). It had rust on the brass casing, the bullet had green down the side (like green corrosion on brass) but I couldn't tell about the tip, if it was green or not. I pulled the bullet and its weight was 62 grain, had 26.5 grains of very fine powder and a brass primer which I pulled and saved.
Does anyone have an idea of what this might have been and what kind of powder was used when it was loaded? Thanks.
I took it apart, kept the primer and bullet, crushed the case and added it to my waste metal bin. The powder I dumped in the flower bed. I think I did good, first time I got to use my new RCBS bullet puller, worked great, could have used the kinetic puller but wanted to see how the RCBS worked.

 

[kcofohio]

The powder may or may not be something available to reloaders.
With rust on the case, was it a steel case? Or lying on the ground with other cases that were steel? I haven't looked at many steel cases, but seems odd for one to have a boxer primer.
Sounds like the RCBS worked good for you. I've thought of getting a collet puller. But I don't pull enough to seem to justify investing in them.

 

[74man]

The case had red corrosion on the side of the brass casing, didn't try to wire brush it but looked like rust, it was a brass LC case with the Nato + in a circle. I took about 150 each .223 cases apart after being taper crimped with a kinetic hammer, never again because it hurt my arm and that it why I bought the RCBS collet puller, which I am very happy with.

 

[lordpaxman]

LC is Lake City , would be a brass case and just corrosion, no rust (iron oxide). The NATO symbol would imply 5.56 as they don’t stamp caliber at that point. Could be an M855, check the tip of the bullet, it would be steel.

 

[illinoisburt]

Run a magnet over the bullet and case will answer a lot of questions. Also a pic of the headstamp would be helpful. What looks like a NATO symbol might be something else like the igman arms stamp.

 

[243winxb]

Nato M855? The circle with + inside is the Nato marking.

The propellant is temperature-stabilized St. Mark’s SMP842, https://www.americanrifleman.org/ar...ng-the-army-s-m855a1-standard-ball-cartridge/

Could be what you found?? Ss109 & M855 is what to google for.

 

[Yankee1986]

More than likely this. ^^^^

 

[25-20 WCF]

….Also a pic of the headstamp would be helpful. What looks like a NATO symbol might be something else like the igman arms stamp.

Perhaps, although the “LC” is pretty compelling. The Igman headstamp is somewhat different.

 

[74man]

The bullet weighed 62 gr. and was magnetic, the casing however was non magnetic and brass. I think that it was a M855 green tip, even though there was no green on the tip, but then again it has been out in the weather for some time.

 

[Yankee1986]

The green tip is an American thing. Other country's don't paint it green.