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Rifles, Reloading, Optics, Equipment
Reloading
Varmint Al's barrel break-in method
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<blockquote data-quote="Mikecr" data-source="post: 2660043" data-attributes="member: 1521"><p>I believe the term you're looking for is <strong>surface profile</strong>. Difficult to measure inside a bore, but it can be done, and easy with an outside sample.</p><p>You are right about a magic range there, and that the best barrel makers lap to it.</p><p></p><p>With bad barrels in the past I became super sensitive to copper fouling. With this, I've messed with different resolutions and learned enough about coatings, lapping, fire lapping, polishing, and barrel cleaning in general.</p><p>Two learnings that helped for sure: (-) Never polish a bore, and (+) Tubb's fire lapping matches that of the best barrels.</p><p>One takes you out of range, the other takes you in.</p></blockquote><p></p>
[QUOTE="Mikecr, post: 2660043, member: 1521"] I believe the term you're looking for is [B]surface profile[/B]. Difficult to measure inside a bore, but it can be done, and easy with an outside sample. You are right about a magic range there, and that the best barrel makers lap to it. With bad barrels in the past I became super sensitive to copper fouling. With this, I've messed with different resolutions and learned enough about coatings, lapping, fire lapping, polishing, and barrel cleaning in general. Two learnings that helped for sure: (-) Never polish a bore, and (+) Tubb's fire lapping matches that of the best barrels. One takes you out of range, the other takes you in. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Varmint Al's barrel break-in method
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