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Rifles, Reloading, Optics, Equipment
Reloading
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<blockquote data-quote="Mikecr" data-source="post: 2629648" data-attributes="member: 1521"><p>I agree with this planning with exception of one part.</p><p>Seating is a VERY coarse <u>prerequisite</u> adjustment, and is not tuning. </p><p>It affects tune, but you shouldn't try to tune with seating. </p><p>Instead, you should tune with your finest <u>tuning</u> adjustment, which is powder (right to the kernel)(after meeting prereq seating).</p><p></p><p>Also, the biggest mistake anyone can make with full seating testing is to do so from a powder node.</p><p>dougduey points out 62.0gr as a powder node. DO NOT perform full seating testing from there. It's the worst place in the world to do it from.</p><p>This, because your seating adjustments from there would serve more to collapse the powder node, than to indicate best seating.</p><p></p><p>Beluebow mentioned beginning seating testing at ~60gr,, that's a better plan.</p><p>From there you could see big ugly grouping that is obviously opening/closing with seating adjustments.</p><p>It's way easier to find best coarse seating with this.</p><p>Then go to powder testing. </p><p>Then go to final seating tweaking (within it's window) for tightest group shaping.</p><p></p><p>And while at ~60gr, you might do some primer swapping to see if anything stands out as better.</p><p>Like coarse seating, primer swapping is not tuning, but prerequisite to tuning. And of course you should also not do that from a powder node.</p><p>With this much testing done, your cases should be fully fire formed to stable, ready for tuning.</p></blockquote><p></p>
[QUOTE="Mikecr, post: 2629648, member: 1521"] I agree with this planning with exception of one part. Seating is a VERY coarse [U]prerequisite[/U] adjustment, and is not tuning. It affects tune, but you shouldn't try to tune with seating. Instead, you should tune with your finest [U]tuning[/U] adjustment, which is powder (right to the kernel)(after meeting prereq seating). Also, the biggest mistake anyone can make with full seating testing is to do so from a powder node. dougduey points out 62.0gr as a powder node. DO NOT perform full seating testing from there. It's the worst place in the world to do it from. This, because your seating adjustments from there would serve more to collapse the powder node, than to indicate best seating. Beluebow mentioned beginning seating testing at ~60gr,, that's a better plan. From there you could see big ugly grouping that is obviously opening/closing with seating adjustments. It's way easier to find best coarse seating with this. Then go to powder testing. Then go to final seating tweaking (within it's window) for tightest group shaping. And while at ~60gr, you might do some primer swapping to see if anything stands out as better. Like coarse seating, primer swapping is not tuning, but prerequisite to tuning. And of course you should also not do that from a powder node. With this much testing done, your cases should be fully fire formed to stable, ready for tuning. [/QUOTE]
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