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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Ballistics beyond 2000 yds : do we need/trust them?
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<blockquote data-quote="CatShooter" data-source="post: 138845" data-attributes="member: 7"><p>[ QUOTE ]</p><p>"Melting lead does not happen"</p><p></p><p>So why are gas checks put on solid lead rifle bullets? </p><p></p><p>[/ QUOTE ]</p><p></p><p>Because it was long ago discovered that the lead deposits on barrels came from "gas cutting" not lead melting. Lead melts at around 750 to 850 F, depending on the alloy.</p><p></p><p>If you ever shoot large old time cartridges like the 45-120 (I do), and use good lubes, you will find that even with naked lead, there is no leading "IF" the bullet is a few thou oversized.</p><p></p><p>But if the bullet is a few thou "undersized" then the first shot will start leading. If you ever shoot paper patched bullets, you will find the patches a few feet in front of the rifle, just slightly singed - the paper burns at 400+ F.</p><p></p><p>SO... if the leading does NOT happen with an oversized, but does happen with an undersized bullet, then it is obvious that it's gas cutting, and not melting that is the culprit.</p><p></p><p>.</p></blockquote><p></p>
[QUOTE="CatShooter, post: 138845, member: 7"] [ QUOTE ] "Melting lead does not happen" So why are gas checks put on solid lead rifle bullets? [/ QUOTE ] Because it was long ago discovered that the lead deposits on barrels came from "gas cutting" not lead melting. Lead melts at around 750 to 850 F, depending on the alloy. If you ever shoot large old time cartridges like the 45-120 (I do), and use good lubes, you will find that even with naked lead, there is no leading "IF" the bullet is a few thou oversized. But if the bullet is a few thou "undersized" then the first shot will start leading. If you ever shoot paper patched bullets, you will find the patches a few feet in front of the rifle, just slightly singed - the paper burns at 400+ F. SO... if the leading does NOT happen with an oversized, but does happen with an undersized bullet, then it is obvious that it's gas cutting, and not melting that is the culprit. . [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Ballistics beyond 2000 yds : do we need/trust them?
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