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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Proof barrel slowing down.
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<blockquote data-quote="Edd" data-source="post: 1449043" data-attributes="member: 30592"><p>I don't think a new barrel speeds up because the friction increased. I think it speeds up because the friction decreased. </p><p></p><p>If the bore surface of a new barrel is rough there will be increased friction because the bore is biting the bullet. As this biting surface wears smooth the friction is decreased and the bullet speeds up. Then as the barrel continues to wear, the area of the smooth surface becomes larger. The larger surface causes more friction.</p></blockquote><p></p>
[QUOTE="Edd, post: 1449043, member: 30592"] I don't think a new barrel speeds up because the friction increased. I think it speeds up because the friction decreased. If the bore surface of a new barrel is rough there will be increased friction because the bore is biting the bullet. As this biting surface wears smooth the friction is decreased and the bullet speeds up. Then as the barrel continues to wear, the area of the smooth surface becomes larger. The larger surface causes more friction. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Proof barrel slowing down.
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