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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Bullet touching the lands or 2000th back?
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<blockquote data-quote="unleashed" data-source="post: 1669525" data-attributes="member: 101884"><p>The main function of tuning seating depth is to change how long the bullet is in the barrel. Once you find the optimum charge weight and the harmonics in the barrel are predictable, you tune the seating depth to ensure the bullet is leaving in the center of the barrel vibration. There are caveats with chamber pressure differences, bullet design, etc. I am jumping my 260AI .080" and it shoots bug holes while my .308 is at .005" off and it performs just as well.</p></blockquote><p></p>
[QUOTE="unleashed, post: 1669525, member: 101884"] The main function of tuning seating depth is to change how long the bullet is in the barrel. Once you find the optimum charge weight and the harmonics in the barrel are predictable, you tune the seating depth to ensure the bullet is leaving in the center of the barrel vibration. There are caveats with chamber pressure differences, bullet design, etc. I am jumping my 260AI .080" and it shoots bug holes while my .308 is at .005" off and it performs just as well. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Bullet touching the lands or 2000th back?
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