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aglore
Member Posts: 6,012
Please take note of the little side bar on page 32 of the Sept. 2002 issue. I't titled "What's the Point"? This has to do with a previous thread and a lot of doubters out there. Written by Craig Boddington.
AlleninAlaska
Free men are not equal and equal men are not free
AlleninAlaska
Free men are not equal and equal men are not free
Comments
I was one of those who thought that lead tips melting off from air friction was just one of those urban myths. Now I ain't so sure. If Col. Boddington thinks that they do, well, I may have to rethink my position a bit, I guess.
Edit -
Of course, he doesn't say just exactly HOW fast is "A fast cartridge"!
Edited by - .280 freak on 08/08/2002 10:17:52
AlleninAlaska
Free men are not equal and equal men are not free
The most important things, Are not things.
Just don't understand why people would think that I would have tried to led them down some fantasy lane when I first brought that subject up about jacketed bullet lead tips.
Of course there will be others that won't have the gonads to admit that I was right. One in particular after he even called and talked to a Speer Technician. Just goes to show what Speer knows about making bullets.
AlleninAlaska
Free men are not equal and equal men are not free
I would have thought that the tip melting away would have caused the bullet to yaw, Hornady tec said no. Being a hard headed Texan, I know that I am wrong, Just cant agree with myself that I am.
The most important things, Are not things.
Its all a lie, Hornady is telling that to everyone just to try and sell the new HMR bullets as a costly bullet.
SSgt Ryan E. Roberts, USMC
A balanced diet is a cookie in each hand
- Life NRA Member
"If cowardly & dishonorable men shoot unarmed men with army guns, the evil must be prevented by the penitentiary...and not by general deprivation of constitutional privilege." - Arkansas Supreme Court, 1878
The most important things, Are not things.
The most important things, Are not things.
I think I remember making an easy joke about the concept of bullets burning up on re-entry, but it wasn't to be taken as a serious weighing in on the subject. Frankly, I'm sure there is a speed at which lead, one of the softest metals, burns in the atmosphere. NASA would certainly agree. Personally, I just don't know what that speed is. If Hornady says it's 2600 fps, okay. If Hornady and Speer disagree, well, Speer makes those nice jacketed boattails so maybe they don't encounter the problem --hehehehhe!
I hear the new Hornady .17 has a MV of 2550 fps, but it's a jacketed bullet so it wouldn't be a factor there anyway. As for raw lead, I wonder how many people are shooting raw lead at rifle speeds sufficient to burn off any significant bullet weight. Now you've got me wondering. Do my little .30 carbine softpoint rounds lose any weight at all at 1700 fps? Probably not much. What about the .45-70? A little more likely, maybe. African calibers? Who shoots unjacketed rounds in an African caliber? I'm no expert on that. There are some things I don't opine about because I don't know much about them -- single shot Contenders, black powder muskets, military life and training (I was college deferred during VietNam), and African heavy calibers are among them. While I do admire a nice Weatherby in a heavy .30 or .40 caliber, I'm not planning to join any Jeff Cooper safaris.
In practical use, I don't know whether bullet erosion due to friction has ever been a real problem, or if it is more in the nature of an engineering consideration, or just a nice little trivia question. I would be interested in hearing more about it in any case. Apparently, lead particles break off due to the heat friction without reaching such temperatures as to glow from the heat, or lead bullets that were subject to this effect would glow in the dark like tracers.
- Life NRA Member
"If cowardly & dishonorable men shoot unarmed men with army guns, the evil must be prevented by the penitentiary...and not by general deprivation of constitutional privilege." - Arkansas Supreme Court, 1878