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View Full Version : 5.56 LC headstamp question.


Jake McCracken
04-21-2020, 10:11 PM
If the one with the NATO marking is a 2009 lc headstamp, what is the other? What year did the format change?https://uploads.tapatalk-cdn.com/20200422/0f1981abef16169b98a76ba244f929ca.jpghttps://uploads.tapatalk-cdn.com/20200422/49bd9699234c1b3972ab4aae903e0640.jpg

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skeettx
04-21-2020, 10:23 PM
One is NATO, the one with the circle cross

http://forum.afte.org/index.php?topic=5938.0

And for the non-NATO

https://www.ar15.com/forums/armory/LC_head_stamp_question/42-282667/
Jake McCracken
04-21-2020, 10:25 PM
So theyre both 2009?

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skeettx
04-21-2020, 10:36 PM
Yes :)
Wayne Dobbs
04-22-2020, 11:13 AM
The later markings are a marking scheme to tell LC which machinery loaded specific runs of 5.56 ammo.
Camba
04-24-2020, 05:10 PM
Are you sure it is not LC 60?


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Outpost75
04-24-2020, 05:46 PM
Are you sure it is not LC 60?


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LC wasn't loading any 5.56mm in 1960.

All the experimental ammo prior to M16 adoption was either FA, RA, WRA or WCC.
Burnt Fingers
04-24-2020, 06:00 PM
Are you sure it is not LC 60?


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You read the numbers from left to right.
Sixgunner john
04-24-2020, 09:08 PM
The NATO headstamp would be the 62 grain green tip. Without the NATO cross it would be the standard 55 grain lead core.


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Larry Gibson
04-24-2020, 09:13 PM
The NATO headstamp would be the 62 grain green tip. Without the NATO cross it would be the standard 55 grain lead core.


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Not so. All M193 and M855 loaded to NATO specs will have the circle + stamp which indicates such. LC is loading a lot to 223 spec for commercial sale which will not have the NATO symbol because SAAMI 223 specs are not NATO specs. That's what we see in the OP's pic; a case which was loaded to NATO spec and a case that was loaded to commercial SAAMI spec.
Tripplebeards
04-25-2020, 09:50 AM
My favorite brass brand. I have a load of 25 grains bench mark and a 60 grain vmax that shoots .3" groups at 200 yards pretty consistently out of my 14.5" POF P415. My avatar is a 100 yard group with it. Chronographs at 2850 feet per second. The brass hasn't been available in years and when it was last year I bought a box of a thousand virgin, unfired, uncrimped primer pocket cases and put them away. I should have bought four or five boxes of them because they were going for 10 times what they normally do after everybody runs out a few years back. I have a primer pocket swager but its not consistent.
Three44s
04-25-2020, 10:00 AM
Viva LC!

Three44s
Jake McCracken
04-25-2020, 10:46 AM
Not so. All M193 and M855 loaded to NATO specs will have the circle + stamp which indicates such. LC is loading a lot to 223 spec for commercial sale which will not have the NATO symbol because SAAMI 223 specs are not NATO specs. That's what we see in the OP's pic; a case which was loaded to NATO spec and a case that was loaded to commercial SAAMI spec.

Thank you for clearing that up! Appreciate the detailed explanation! I knew the meaning of the circle / cross and what the dots were for. I was just under the impression they had switched headstamp format. Didn't know there were 2 different "versions" for different specs.

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