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Rifles, Reloading, Optics, Equipment
Reloading
Yep, I Tumble Bullets.
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<blockquote data-quote="Petey308" data-source="post: 2770109" data-attributes="member: 106845"><p>Agreed. It's my theory that the reloading community has taken/borrowed the term "cold welding" and used it as sort of an analogy to a problem they haven't fully understood. It's since become the standard/common term, even though it's not actually an accurate term for what's occurring at all. </p><p></p><p>Like you said, it's simply dissimilar metal corrosion- specifically galvanic corrosion. </p><p></p><p>This is exacerbated by direct contact of the dissimilar metals and any moisture or moisture attracting elements (like salt). </p><p></p><p>It is easily prevented by applying any form of barrier between the dissimilar metals and keeping the metal free of moisture. Graphite, mica, HBN, moly, carbon, dry films, corn cob or crushed walnut residue, etc would all create an effect barrier and help inhibit corrosion from occurring. Some are more effective than others. </p><p></p><p>Factory ammo, military ammo, etc is made with such corrosion inhibitors and is one reason why you don't see issues with them. Another reason is the components are barely touched and handled in the process and no oils, sweat, salt, etc is introduced to the metal surfaces as the ammo is assembled, and if they are handled the worker wears gloves. </p><p></p><p>Wet tumbled brass immediately loaded with a copper bullet, and neither given any sort of treatment beforehand, stands to have a much higher percentage from eventual galvanic corrosion, especially if handled with ungloved hands. </p><p></p><p>As mentioned, the easiest ways to prevent the corrosion is applying a barrier, wearing gloves, and shooting the ammo before it has a chance to corrode.</p></blockquote><p></p>
[QUOTE="Petey308, post: 2770109, member: 106845"] Agreed. It’s my theory that the reloading community has taken/borrowed the term “cold welding” and used it as sort of an analogy to a problem they haven’t fully understood. It’s since become the standard/common term, even though it’s not actually an accurate term for what’s occurring at all. Like you said, it’s simply dissimilar metal corrosion- specifically galvanic corrosion. This is exacerbated by direct contact of the dissimilar metals and any moisture or moisture attracting elements (like salt). It is easily prevented by applying any form of barrier between the dissimilar metals and keeping the metal free of moisture. Graphite, mica, HBN, moly, carbon, dry films, corn cob or crushed walnut residue, etc would all create an effect barrier and help inhibit corrosion from occurring. Some are more effective than others. Factory ammo, military ammo, etc is made with such corrosion inhibitors and is one reason why you don’t see issues with them. Another reason is the components are barely touched and handled in the process and no oils, sweat, salt, etc is introduced to the metal surfaces as the ammo is assembled, and if they are handled the worker wears gloves. Wet tumbled brass immediately loaded with a copper bullet, and neither given any sort of treatment beforehand, stands to have a much higher percentage from eventual galvanic corrosion, especially if handled with ungloved hands. As mentioned, the easiest ways to prevent the corrosion is applying a barrier, wearing gloves, and shooting the ammo before it has a chance to corrode. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Yep, I Tumble Bullets.
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