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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Bullet tips melt! Now what?
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<blockquote data-quote="Engineering101" data-source="post: 1166412" data-attributes="member: 63138"><p>buttermilk</p><p> </p><p>You are right and wrong. Delrin melts around 400 degrees F and lead at 621 degrees F. But, at velocities over 2,100 fps, stagnation temperatures at the bullet tip are above 700 degrees F. So, lead could melt too but it is better than Delrin by quite a bit. By comparison Hornady's new polymer used in the ELD-Xs melts at 700 degrees F and they say it won't have issues (melt) unless fired at velocities above 3,400 fps. All of that doesn't quite add up but that is what the articles in Shooting Times indicated. So who really knows what is going on here? Not me.</p></blockquote><p></p>
[QUOTE="Engineering101, post: 1166412, member: 63138"] buttermilk You are right and wrong. Delrin melts around 400 degrees F and lead at 621 degrees F. But, at velocities over 2,100 fps, stagnation temperatures at the bullet tip are above 700 degrees F. So, lead could melt too but it is better than Delrin by quite a bit. By comparison Hornady's new polymer used in the ELD-Xs melts at 700 degrees F and they say it won't have issues (melt) unless fired at velocities above 3,400 fps. All of that doesn't quite add up but that is what the articles in Shooting Times indicated. So who really knows what is going on here? Not me. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Bullet tips melt! Now what?
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