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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
burning exposed lead tip?
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<blockquote data-quote="Kevin Thomas" data-source="post: 858742" data-attributes="member: 15748"><p>Patrick,</p><p> </p><p>I'm sure there would be some melting of the polymer, but I suspect that it would be a similar process to the ablation I described previously. Time, and heat transfer are the main elements. While the heat transfer of the lead would take a measure of time, it's still a pretty reasonable conductor of heat. Polymer isn't. I suspect that the surface layers would ablate without passing too much heat on down to the rest of the tip. My suspicions only here, and no, I've never seen any testing of this nature done with poly tipped projectiles. </p><p> </p><p>As far as the monolithic bullets go, I'm not sure there's any issues that would really warrant such an investigation. Berger spent some major money to do this, because they were having problems with their bullets and needed to find answers. The answers were fascination, and of some benefit to all of us. This, incidentally, was the study that resulted in their creating a separate line of "Match" and "Hunting" bullets; the "Match" bullets had their jackets thickened slightly to delay that heat transfer, and it eliminated their blow-up problems. As I pointed out in the SAFS comments, it can still exist in a "worst case" scenario, but that's kinda what makes it such an interesting phenomenon. Just rounded up a copy of the Guns and Ammo piece, and will read it here shortly. You guys got me curious now!</p></blockquote><p></p>
[QUOTE="Kevin Thomas, post: 858742, member: 15748"] Patrick, I'm sure there would be some melting of the polymer, but I suspect that it would be a similar process to the ablation I described previously. Time, and heat transfer are the main elements. While the heat transfer of the lead would take a measure of time, it's still a pretty reasonable conductor of heat. Polymer isn't. I suspect that the surface layers would ablate without passing too much heat on down to the rest of the tip. My suspicions only here, and no, I've never seen any testing of this nature done with poly tipped projectiles. As far as the monolithic bullets go, I'm not sure there's any issues that would really warrant such an investigation. Berger spent some major money to do this, because they were having problems with their bullets and needed to find answers. The answers were fascination, and of some benefit to all of us. This, incidentally, was the study that resulted in their creating a separate line of "Match" and "Hunting" bullets; the "Match" bullets had their jackets thickened slightly to delay that heat transfer, and it eliminated their blow-up problems. As I pointed out in the SAFS comments, it can still exist in a "worst case" scenario, but that's kinda what makes it such an interesting phenomenon. Just rounded up a copy of the Guns and Ammo piece, and will read it here shortly. You guys got me curious now! [/QUOTE]
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burning exposed lead tip?
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