?? are these
- Thread starter jb100
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TrickyDick
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Possibly training rounds
chicharrones
needs more ammo
The box looks like A-2552 7.62x51 to me.
brasscollector
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7.62x51 is just govt speak for 308w
buck460XVR
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Yep for the most part. .308 generally is loaded to higher pressure so while it's safe to shoot 7.62 in a .308, it's not always true the other way around. Some of the old MilSurp ammo uses corrosive primers, so you might want to make sure you clean the barrel when you're done.
Pat Riot
Contributing Member
I recall buying Hirtenberger 7.62 ammo years ago to shoot in my Garand. I had it converted to .308 years ago. It shot very well, though I had no tracers in the 250 round partial case that I bought. This was in the late 90’s.
If I recall correctly, this was good ammo sold in 200 round battle packs years ago. Seems like it was berdan primed, which kept me from buying, but I never heard negative reports about it.
dogtown tom
Member
I've never heard of anyone referring to 7.62 as "a good 8mm round". Now, 7.92mm....yes, often called 8mm.
The two aren't remotely close.
Jim Watson
Member
Nope.
The "higher pressure .308 than 7.62" misconception was straightened out some time ago. The problem was that the US Army is not a member of SAAMI and kept calibrating crusher gauges in pounds per square inch instead of calling it "CUP." When they went over to electronic transducers, voi'la, the numbers got close.
I doubt any developed country has made corrosive primed 7.62. Every reference I find to Hirtenberger says noncorrosive. The stock number that chicharrones spotted is even reported as Boxer primed.
Oh, wait, THIS developed country has made corrosive 7.62, FA 56 Match. At the time, corrosive primers were considered to give better accuracy. Winchester even made match ammo with primers both corrosive and mercuric up until 1960. I knew of their .30-06 and .300 H&H Super Match, but just found mention of .308.
Tommygunn
Member
OK I'm not arguing, but then just how does .308 compare to 7.62 X 51 - - - pressure wise?
OP
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jb100
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Original poster here, and thanks for the replies. I know what 7.62x51 ball is. The question is what are the black rounds w red tips that were in the pictured boxes. One person says tracers. Other rounds in the boxes were normal with the black ones mixed in. Any other ideas?
jonnyc
Member
Same thing...just like your aunt is your mother's sister...same person. The only difference is reloading military vs commercial cases.
chicharrones
needs more ammo
@TheDr might be spot on with tracer rounds. The thing that is throwing me is the dark jacket. Per the website below, a dark jacket like that might be something called B-Killer. There are two different jackets shown with B-Killer.
http://cartridgecollector.net/762-x-51-nato
"B-KILLER
This was an NGA project for a Far Eastern client. The idea was to have a cartridge for snipers and anti-terror units to be able to take out a hijacker though the curved window of an airliner without deflection, hence the name Boeing killer, because NGA used a Boeing window and which was the nickname for this cartridge in South Africa. The resultant bullet used an imported tungsten core inside a copper “sabot” that was manufactured locally. Various versions were tested by NGA."
dogtown tom
Member
Doubtful. When the ammo in the OP was manufactured I'll bet that everone in the world would have laughed at the idea of plastic tips. From the box markings it appears to be 1979/80 production. Nosler didn't come out with plastic ballistic tip ammo until 1983 or 84.
Military ammo typically has painted tips to differentiate between ball, armor piercing, tracer, incendiary, etc.
Guide to what the colored tip means:http://www.cotep.org/forum/showthread.php?t=13516
Jim Watson
Member
Tommygunn, NRA says .308 maximum, 62000 psi, 7.62 60200 psi, less than 3% difference.
You can get into the chamber specs, 7.62 is a bit "roomy" for sustained fire from hot dirty automatic weapons.
I would be applying a magnet to that Hirtenberger, then a bullet puller, then maybe a hacksaw.
You can get into the chamber specs, 7.62 is a bit "roomy" for sustained fire from hot dirty automatic weapons.
I would be applying a magnet to that Hirtenberger, then a bullet puller, then maybe a hacksaw.
CapnMac
Member
Well, people are applying what they know.
Here is Hirtenberger Tracer:
https://forum.cartridgecollectors.org/t/7-62x39-hirtenberger-tracer-and-proof/23155
Bright red tip with gilding metal jacket.
Some of the international cartridge collectors say that "purple" bullets are specially handled accuracy rounds.
That red tip is also very short, too, only about 5mm--the NATO spec for Tracer is 12mm of red.
chicharrones
needs more ammo
Same here.
mcb
Member
The bullets appear to be coated with Molybdenum Disulfide. It acts as a dry film lubricant.
chicharrones
needs more ammo
So, the OP can wipe that off of one cartridge to show us the answer to the trick question?
Edit to add: Looks like y'all nailed it. https://www.midwayusa.com/product/1165127340?pid=127340
I'm kinda disappointed they didn't turn out to be some exotic anti-terrorist cartridges.
Last edited:
jonnyc
Member
I didn't see this info above, but did the rounds in question come from a sealed factory box?
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