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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Is barrel break-in really needed for factory guns?
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<blockquote data-quote="jb1000br" data-source="post: 59358" data-attributes="member: 1459"><p>SS et al.</p><p></p><p>The MAIN purpose for barrel break in is to smooth out the transverse "grooves" left in the leade when the barrel is chambered.</p><p></p><p>the chamber reamer, no matter how sharp, lets grooves perpendicular to the bullets travel at the beginning of the lands, and needs smoothed off a bit.</p><p></p><p>Dave tubb uses, i believe his finest grit, FF bullets to expedite the process even on custom barrels.</p><p></p><p>Most coppering during break in comes from the rough new cut lands causing vaporized copper to get deposited in the bore.</p><p></p><p>FWIW,</p><p>JB</p></blockquote><p></p>
[QUOTE="jb1000br, post: 59358, member: 1459"] SS et al. The MAIN purpose for barrel break in is to smooth out the transverse "grooves" left in the leade when the barrel is chambered. the chamber reamer, no matter how sharp, lets grooves perpendicular to the bullets travel at the beginning of the lands, and needs smoothed off a bit. Dave tubb uses, i believe his finest grit, FF bullets to expedite the process even on custom barrels. Most coppering during break in comes from the rough new cut lands causing vaporized copper to get deposited in the bore. FWIW, JB [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Is barrel break-in really needed for factory guns?
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