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Rifles, Reloading, Optics, Equipment
Reloading
Bullet Depth, "off the lands" vrs OAL?
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<blockquote data-quote="boomtube" data-source="post: 533909" data-attributes="member: 9215"><p>There is no 'rule' for bullet seating and OAL is simply another way of expressing the seating depth. The jump to the lands is what ever we make it.</p><p> </p><p>Contrary to conventional 'wisdom', few factory sporters shoot their best at or really close to the lands. Most do best with a jump from 20 thou off the lands to as much as five times that much. Pick a depth where you want to start develop your charge, then experiment with seating changes in maybe 5 thou steps until you find the best shooting combination for your rig. I like to start maybe 15 thou off but that's just a convient place, others do it differently.</p><p> </p><p>Ogive measurement tools are supplied by Sinclair, RCBS (Precision Case Mic), Innovative Technologies and Hornady.</p></blockquote><p></p>
[QUOTE="boomtube, post: 533909, member: 9215"] There is no 'rule' for bullet seating and OAL is simply another way of expressing the seating depth. The jump to the lands is what ever we make it. Contrary to conventional 'wisdom', few factory sporters shoot their best at or really close to the lands. Most do best with a jump from 20 thou off the lands to as much as five times that much. Pick a depth where you want to start develop your charge, then experiment with seating changes in maybe 5 thou steps until you find the best shooting combination for your rig. I like to start maybe 15 thou off but that's just a convient place, others do it differently. Ogive measurement tools are supplied by Sinclair, RCBS (Precision Case Mic), Innovative Technologies and Hornady. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Bullet Depth, "off the lands" vrs OAL?
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