Posted on 02/09/2021 3:30:05 AM PST by marktwain
There goes your credibility; we had them in all units of the First Marines in March 1967 and except for a few holdouts (me - I kept my M14) and it was jamming, breaking (I saw an M16 wrecked when a Marine hit a VC over the head with it) and generally unsat for quite some time. When the number of our dead next to their useless rifles finally got some attention, the investigators said that it was our fault: "improper cleaning and lubricants".
Only long after the war did the good old government finally come clean and admit to using ball powder instead of the originally recommended powder.
How exactly would "5.56mm be popular with WWII vets" when 5.56mm didn't exist in WWII?
The Wound Ballistics book criticized the Japanese 6.5mm caliber because of its lesser ability to kill at combat ranges.
Want to talk about a killer? The Japanese 50mm Type 89 Grenade Projector ("Knee Mortar") accounted for 60% of our infantry combat deaths in the Pacific War. One pound TNT-filled projectile with huge frags.
If 5.56 floats your boat, fine - but keep the ranges short. If you're going to discuss our war, do a better job of researching.
what a load of crap
it was ALL M16s when I was there in 69 and we were kickingazz with them
my credibility is just fine
M16 broke over VC head who do you think you’re fooling Mr. Credibility
We had a VC jump out of a spider hole and run and our "duty hero", Big John went after him. He decided to try to capture him alive since he was apparently not carrying a weapon. They got about 100m away from us in the open when the VC turned and dropped to his knee and pulled a pistol and shot Big John in the face.
Big John, his face a mass of blood, swung the M16 overhead and hit the VC in the head, shattering the plastic stock.
We got up to him and Big John was sitting down and a corpsman cleaned his face while trying to figure out why he was still alive. The doc open his mouth and the pistol bullet was stuck in his tongue: the bullet had hit him on the bridge of his nose and deflected downward through his palate and into his tongue.
I don't know whether the VC was still alive or not. Big John was wounded three times while I was with them - the last time with me, probably the same bullet.
You should know better. We had enough idiots doubting us back then.
Chainmail - Golf company, 2nd Bn, 1st Marines, Jan '66 - May 1967.
yeah right
been nice talking to you Mr. Credibility I’m sure some booby will enjoy your ghost stories
Looking at your "credibility", bub - your auspicious military career was what?
my military career is none of your damn business
STFU and GFY crank
Well, that's a shame. Started out respecting you and it went downhill after that. I'm beginning to suspect that you are a phony, a "Stolen Valor" poseur.
Too bad.
I bow in deference to your personal witness and study of wound ballistics, accepting it as verifiable truth, an experience that I do not have. But I thought that a brief search through available experimentation with tests of the .223 bullet in ballistic gel might yield a visible illustration of the experiences you had.
But what came out is that your truth was backed up by it, but so was mine that comes from casting a wider net. The short of it comes down to observable facts that bear-killing might better be done with the original AR15 with the original M193 ammo, with a long barrel and a slow twist, which appears to make the most massive wound, as shown in the following videos, and as you commented.
But on the other hand, the penetrating M855 green-tipped round in a shorter barrel with higher rate of twist yields a wound channeling which the round doesn't start to yaw and tumble until it is pretty much through the human body, straight on.
In either case, for the military round there doesn't seem to be much mushrooming effect. The bullet either passes through, or it fragments into a cloud of fine pieces under the cavitation forces.
I hope the following videos will give a better illustration of what may happen, and what to select as a defensive AR15 build:
(1) M855 5.56 NATO Green Tip Penetrator Ballistics Gel Test & Review (HD) (click here)Thank you very much for your contribution in improving my education on this topic. I hope this does not bring back too many bad memories or nightmares.(Note the difference between M163 wound compared to M855 wound channel in the table shown at 5:26 into the 8:09 length of video)
(2) AR15 ammo test: M193 XM193F 5.56 NATO in ballistic gelatin (click here)
(2) Carbine Comparison: 5.56x45mm M855 and .223 Rem 55gr FMJ 16" Gel Test (click here)
(4) Test: Vietnam era M193 ball 1:12 twist vs. Modern M855 ball 1:7 twist (click here)
This particular demonstration is pretty astounding as to the variability of the rifles and the cartridges used.
I wasn’t using .223 (5.56 NATO) ammo. It was .308 ball (7.62 NATO). And some people are just plain lucky when it comes to getting severely injured and not dying.
But thanks for your service, for being "lucky" and coming home after helping to keep this country still fit to live in, and continuing on in an even greater way. (From someone whose little bit was as a weekend warrior with the 174th Armored Infantry Bn, 27th Armored Div, NYARNG, 1956-62. I am always gratified by you real warriors that treat me as a fellow veteran, having fulfilled my national service, though my own part in the big picture but a couple of pixels.)
My worst nightmare was an enemy soldier with a captured M16.
Glad to be of assistance.
So is 5.56 62gr green tip good?
I hope so. Bought a very small amount but I really don’t know much about it.
Very useful stuff, next time you’re attacked by a block of ballistic gel.
While you’re playing, see what happens when you hit those blocks with plain old 7.62mm M80 Ball.
Just make sure you have a NATO or Wylde barrel on it.
Hi.
When I used to hunt dear and turkey, I always carried my Ruger GP 100 (.357) with me.
Most all of the places that I have hunted (even FL), had substantial black/brown bear populations.
Besides your Bowie or Kbar, ya gotta have insurance.
5.56mm
One of the reliable signs of a poser is their fondness for telling lurid war stories.
The ones who were really in the sh-t don’t even want to remember it much less blather a load of hokey fairy tales.
>>The more they talk the less they did<<
It’s definitely a 5.56 rifle
https://en.wikipedia.org/wiki/.223_Wylde_chamber
"A .223 Wylde chamber is a hybrid rifle chamber designed to allow .22 caliber barrels to safely fire both .223 Remington and 5.56×45mm NATO ammunition. While the cartridge dimensions of both rounds are the same, 5.56 NATO loads produce pressures in excess of the .223 safe spec. The 5.56 chamber has angular differences that allow higher pressures safely. .223 can be fired from a 5.56 chamber safely but with reduced accuracy. The Wylde is a hybrid chamber designed to allow both ammunition types to be safely fired with good accuracy."This advice from Wiki indicates that your rifle can fire the green tips OK, if the barrel is guaranteed for the NATO cartridge and so marked.
But please note that I am not an expert on this. You must do your own confirmation!
(An "ex" is a "has-been" and a "spurt" is a drip under pressure.)
No. My experience was with game not humans. But I do have a fair grasp of ballistics and bullet design.
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