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Rifles, Reloading, Optics, Equipment
Reloading
Seating depth advice
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<blockquote data-quote="Mikecr" data-source="post: 2226204" data-attributes="member: 1521"><p>Seating is your coarse adjustment, powder is a fine adjustment.</p><p>You're doing this testing backwards in that you're adjusting coarse with concern for fine.</p><p></p><p>If your sure you're beginning in a powder node, then get away from that node and do coarse seating testing purely for tightest coarse grouping. Your best grouping with that might be 2moa, doesn't matter, you're finding best seating.</p><p>Then with best coarse seating, go back to your powder testing, but watch grouping.</p><p>Then finish with fine seating adjustments within it's window. Tweaking for tightest group shaping.</p><p></p><p>Your ES/SD may be higher or lower, but accuracy will trump it.</p><p>There are other ways to lower ES.</p><p></p><p>In reality, seating action is not tuning at all. And neither is primer striking adjustments.</p><p>They are prerequisites to good tuning.</p><p>Tuning consists of powder, vibration, and sys recoil.</p><p></p><p>The reason you can have fantastic accuracy at distance even with higher ES, is because the vibrational node is flattening out, or compensating, for powder node character. So don't get all hung up with a chronograph until at least finding your most powerful of ballistic attributes (accuracy).</p></blockquote><p></p>
[QUOTE="Mikecr, post: 2226204, member: 1521"] Seating is your coarse adjustment, powder is a fine adjustment. You're doing this testing backwards in that you're adjusting coarse with concern for fine. If your sure you're beginning in a powder node, then get away from that node and do coarse seating testing purely for tightest coarse grouping. Your best grouping with that might be 2moa, doesn't matter, you're finding best seating. Then with best coarse seating, go back to your powder testing, but watch grouping. Then finish with fine seating adjustments within it's window. Tweaking for tightest group shaping. Your ES/SD may be higher or lower, but accuracy will trump it. There are other ways to lower ES. In reality, seating action is not tuning at all. And neither is primer striking adjustments. They are prerequisites to good tuning. Tuning consists of powder, vibration, and sys recoil. The reason you can have fantastic accuracy at distance even with higher ES, is because the vibrational node is flattening out, or compensating, for powder node character. So don't get all hung up with a chronograph until at least finding your most powerful of ballistic attributes (accuracy). [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Seating depth advice
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