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Long Range Hunting & Shooting
Proof Carbon Barrel Cooling
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<blockquote data-quote="ntsqd" data-source="post: 1709104" data-attributes="member: 93138"><p>Yes, but what if it is 500°F at the bore surface when you start cooling? I can't believe that NOTHING happens to the crystalline structure of the metal when this is done even if you do start below the lower critical temperature. All of the H-T procedures that I've read say slow cool to room temperature or at least under 100°F. Those are specifically for tool steels, but it should be indicative for all steels.</p><p></p><p>Extrapolate that one-time event to doing it 50 or maybe even 100 times. Now what is the bore's surface metallurgy? All that I'm advocating is knowing where you're going before you get there.</p></blockquote><p></p>
[QUOTE="ntsqd, post: 1709104, member: 93138"] Yes, but what if it is 500°F at the bore surface when you start cooling? I can't believe that NOTHING happens to the crystalline structure of the metal when this is done even if you do start below the lower critical temperature. All of the H-T procedures that I've read say slow cool to room temperature or at least under 100°F. Those are specifically for tool steels, but it should be indicative for all steels. Extrapolate that one-time event to doing it 50 or maybe even 100 times. Now what is the bore's surface metallurgy? All that I'm advocating is knowing where you're going before you get there. [/QUOTE]
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