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Rifles, Reloading, Optics, Equipment
Reloading
Accuracy=seating depth or tenths of powder
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<blockquote data-quote="Mikecr" data-source="post: 1113967" data-attributes="member: 1521"><p>A narrow seating window is removed from concern once you set them all the same. </p><p>That bullets shoot best at some particular setting might as well be assumed. If you do full seating testing, you will find THE best place, and no other is 'best'.</p><p></p><p>Seating depth is the coarse adjustment, powder the fine adjustment. Anyone who's ever calibrated something knows you adjust coarse first, followed by fine.</p><p>So seating, then powder, then you should go back to seating and tweak it a few thou each way to 'shape' grouping. This final tweak is not tuning or developing(you're past that), and does not affect tune -unless you go beyond a few thou or into/off lands. </p><p>This is where most people screw up load development. They go powder first, then collapse their powder node with seating testing, which at that point is two changes at once. They'll almost always conclude that whatever seating they pulled from their butt to do powder testing -must be best... But there was never a reason for any random chosen seating to be best. That would just be blind luck if it happened.</p><p>The way to find best seating is with a powder load no where near any node. Worst powder load is best for seating testing, and with this the only dramatic changes occur purely from seating adjustments. That's how you find best.</p></blockquote><p></p>
[QUOTE="Mikecr, post: 1113967, member: 1521"] A narrow seating window is removed from concern once you set them all the same. That bullets shoot best at some particular setting might as well be assumed. If you do full seating testing, you will find THE best place, and no other is 'best'. Seating depth is the coarse adjustment, powder the fine adjustment. Anyone who's ever calibrated something knows you adjust coarse first, followed by fine. So seating, then powder, then you should go back to seating and tweak it a few thou each way to 'shape' grouping. This final tweak is not tuning or developing(you're past that), and does not affect tune -unless you go beyond a few thou or into/off lands. This is where most people screw up load development. They go powder first, then collapse their powder node with seating testing, which at that point is two changes at once. They'll almost always conclude that whatever seating they pulled from their butt to do powder testing -must be best... But there was never a reason for any random chosen seating to be best. That would just be blind luck if it happened. The way to find best seating is with a powder load no where near any node. Worst powder load is best for seating testing, and with this the only dramatic changes occur purely from seating adjustments. That's how you find best. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Accuracy=seating depth or tenths of powder
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