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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Cryonic treatment of rifle barrels.
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<blockquote data-quote="ntsqd" data-source="post: 1873592" data-attributes="member: 93138"><p>How did that molten steel get into that shape from out of the crucible? It was poured into some basic form, be it an incremental process or a continuous process. That makes it a casting. It didn't stay that way for very long as it likely never cooled in that shape, but for a brief time period it was a casting.</p><p></p><p>Given how secretive, with good reason, most high quality barrel makers are about their exact process I doubt that we'll ever know what each maker does in terms of stress-relieving and heat-treat. I lump cryo in the overall umbrella of "heat-treating" because it is a thermal process. Most such processes that I have read up on employ both low temperature and high temperature in a carefully controlled & timed sequence. I don't think anyone still does only the cold part of the process any more.</p></blockquote><p></p>
[QUOTE="ntsqd, post: 1873592, member: 93138"] How did that molten steel get into that shape from out of the crucible? It was poured into some basic form, be it an incremental process or a continuous process. That makes it a casting. It didn't stay that way for very long as it likely never cooled in that shape, but for a brief time period it was a casting. Given how secretive, with good reason, most high quality barrel makers are about their exact process I doubt that we'll ever know what each maker does in terms of stress-relieving and heat-treat. I lump cryo in the overall umbrella of "heat-treating" because it is a thermal process. Most such processes that I have read up on employ both low temperature and high temperature in a carefully controlled & timed sequence. I don't think anyone still does only the cold part of the process any more. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Cryonic treatment of rifle barrels.
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