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Post by encore50a on Nov 21, 2015 14:54:34 GMT -5
Hornady was testing a polymer tipped bullet using a Doppler radar, which I assume was the LabRadar. The bullet being tested was an ELD-X bullet, but again had the polymer tip. Hornady's engineers were checking out the prototype bullet's trajectories on computers, when the were confounded by flighty flight. What they determined was that the polymer tip was actually melting during flight. It appears that Hornady will be using new super-heat-resistance polymer tips now.
Hornady found that it affected high BC bullets at distances of more than 350yds.
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Post by Deleted on Nov 21, 2015 15:00:01 GMT -5
Very interesting
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Post by 7mmfreak on Nov 21, 2015 15:43:55 GMT -5
The doppler they use is not a LabRadar. I'm interested to try the new ELD-X and ELD Match in lieu of my A-MAX bullets. I personally have not had any issues with "flighty flight" from the A-MAX in 208gn/.308 or 162gn/.284 variants and I shoot them at 2700-2900fps. I am more interested in the ability to shoot animals at closer range than I am comfortable using the A-MAX in my 7mm RM.
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Post by 1coyotemaster on Nov 21, 2015 17:15:02 GMT -5
I read that a while back and if I remember correctly 3000 fps was the critical velocity as far as the polymer tip distorting. Under that velocity distortion was minimal. It is an interesting read and no doubt has validity.
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Post by encore50a on Nov 21, 2015 18:15:25 GMT -5
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Post by rossman40 on Nov 21, 2015 23:50:52 GMT -5
The radar they are using looks to be one from a new company out of Canada called Infinition. If you look at the picture in the link encore pasted the antenna unit is the large white panel with a riflescope attached to it. Supposedly on a good day it can follow a .22 out to 1000yds (if it is the high end unit). Another case of military technology filtering down. We had big ones,  And we had smaller ones,  The big one could track a 155mm shell 50km (31 miles) away, the smaller one was good for about half that. We even set (aligned) them up the same way,  |
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Post by encore50a on Nov 22, 2015 6:38:46 GMT -5
That's a Doppler radar..... LOL
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Post by dannoboone on Nov 22, 2015 8:38:13 GMT -5
For me to fully believe this, Hornady would have to recover
a bullet at the ranges in which they notice bullets getting
"flighty". Surely, I'm not the only one here who has
recovered plastic bullet tip or two, or three. There was
no hint of heat damage at all, even though the bullet itself
disintegrated. It MAY be reasonable to expect a heated metal
bullet (from air friction) could soften the plastic during
a long flight, effecting the flight path.
So far, I neither believe or disbelieve their stated
conclusions. I've used Hornady bullets ever since the
mid-60's, and they are generally good bullets. But the
company has been doing quite a bit of "hype" in the
advertising of their products the last few years, and
as of late, I've been taking it all with a grain of
salt (or two).
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Post by rossman40 on Nov 22, 2015 9:40:26 GMT -5
I remember one time HQ sent us to a Observation Post (OP) and it just happened to be about 5-6 KM down range from a .50 range. We just get there and was checking things out and we start taking incoming rounds when the .50 cal range went hot. I put my guys against the wall of this old concrete bunker. Our vehicles/radios were about 300yds away so I couldn't call for a cease fire so I just decided to keep my guys under cover and wait till the firing stopped. One of my privates was sitting with his back to the wall with his legs stretched out (doing a lizard drill) and a .50 bullet lands about 6" from his foot. Of course he immediately goes to grab it for a souvenir and it was hot enough that it burned him. Even a few minutes later it was still too hot to handle with bare hands. Looking at the bullet it appeared to have ricocheted/skipped off maybe the berm of the firing range. Still a pretty good looking bullet with just some scuffs on the nose.
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