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Rifles, Reloading, Optics, Equipment
Reloading
Verticle Spreading and load development help - where to go from here?
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<blockquote data-quote="PNWdude67" data-source="post: 2209194" data-attributes="member: 110615"><p>Have you tried it? What were your results? We are finding the new hybrid Ogive bullets perform well with some healthy jump in 6mm, 6.5mm 7mm and 30 cal. Or you could just keep doing what everyone in this discussion does and seat .003-.010 off no matter what as it will most likely shoot good. Then watch accuracy deteriorate after 300 rounds and .005-8 throat erosion which consequently changed the geometric relationship of the bullet to lands 160-50% At 50-80 thousandths jump it takes more rounds to see .005-008 throat erosion and the jump % increases much less from the starting point is much less. Some of us are jumping way more than 80 thou. Weatherby had some good practices and one of them was a lot of jump. Berger has some articles on finding jump "nodes" over 100 thousandth off too. We almost always start 50 thousandth off the lands now and we will be adding more freebore to some of our chambers initially based on what we are seeing.</p></blockquote><p></p>
[QUOTE="PNWdude67, post: 2209194, member: 110615"] Have you tried it? What were your results? We are finding the new hybrid Ogive bullets perform well with some healthy jump in 6mm, 6.5mm 7mm and 30 cal. Or you could just keep doing what everyone in this discussion does and seat .003-.010 off no matter what as it will most likely shoot good. Then watch accuracy deteriorate after 300 rounds and .005-8 throat erosion which consequently changed the geometric relationship of the bullet to lands 160-50% At 50-80 thousandths jump it takes more rounds to see .005-008 throat erosion and the jump % increases much less from the starting point is much less. Some of us are jumping way more than 80 thou. Weatherby had some good practices and one of them was a lot of jump. Berger has some articles on finding jump “nodes” over 100 thousandth off too. We almost always start 50 thousandth off the lands now and we will be adding more freebore to some of our chambers initially based on what we are seeing. [/QUOTE]
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Reloading
Verticle Spreading and load development help - where to go from here?
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