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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Bullet temp in flight
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<blockquote data-quote="Doom2" data-source="post: 2645413" data-attributes="member: 108323"><p>The tip of the bullet is exposed to a total air temperature at the tip based on the bullet Mach number. Assuming a 70 deg F ambient temperature at a Mach number of 2 the temperature of the air will be ~500 deg F and at Mach 3 it ~1000 degrees F. The tip bing plastic will not transfer the heat effectivly from the tip. Given time the tip will soften.</p><p></p><p>The paper referenced is not applicable as it deals with heating of a metallic bullet with a high heat capacity.</p><p></p><p>Edit: <a href="https://www.grc.nasa.gov/WWW/BGH/stagtmp.html" target="_blank">https://www.grc.nasa.gov/WWW/BGH/stagtmp.html</a></p></blockquote><p></p>
[QUOTE="Doom2, post: 2645413, member: 108323"] The tip of the bullet is exposed to a total air temperature at the tip based on the bullet Mach number. Assuming a 70 deg F ambient temperature at a Mach number of 2 the temperature of the air will be ~500 deg F and at Mach 3 it ~1000 degrees F. The tip bing plastic will not transfer the heat effectivly from the tip. Given time the tip will soften. The paper referenced is not applicable as it deals with heating of a metallic bullet with a high heat capacity. Edit: [URL]https://www.grc.nasa.gov/WWW/BGH/stagtmp.html[/URL] [/QUOTE]
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Bullet temp in flight
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