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Rifles, Reloading, Optics, Equipment
Reloading
ES and seating depth.
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<blockquote data-quote="MagnumManiac" data-source="post: 2900423" data-attributes="member: 10755"><p>You're doing it wrong, tuning seating depth should be done first because it will change the node, as you discovered, far too much trying to tune seating depth after tuning powder.</p><p>Doing it your way will repeat, groups will close then open and powder is a course tune, which is why it's doing what it's doing now.</p><p>I was once a believer in powder first, then seating depth, but after many attempts at seating depth first with a middle of the road load, the outcome has always been easier to tune powder with a tuned seating depth. Also, you may find .010" off the lands where it all comes together. I have always found .005" increments to work better than any other number, .010" is course, .005" is fine in regard to tuning and .003" is almost negligible.</p><p>In the 300WM, which I have 5 hunting rifles, one of which is a 5R and unfired, have all got SAAMI chambers, however, my comp barrels and 1 custom have the A191 chamber, which is far easier to tune across the board.</p><p></p><p>Cheers.</p></blockquote><p></p>
[QUOTE="MagnumManiac, post: 2900423, member: 10755"] You’re doing it wrong, tuning seating depth should be done first because it will change the node, as you discovered, far too much trying to tune seating depth after tuning powder. Doing it your way will repeat, groups will close then open and powder is a course tune, which is why it’s doing what it’s doing now. I was once a believer in powder first, then seating depth, but after many attempts at seating depth first with a middle of the road load, the outcome has always been easier to tune powder with a tuned seating depth. Also, you may find .010” off the lands where it all comes together. I have always found .005” increments to work better than any other number, .010” is course, .005” is fine in regard to tuning and .003” is almost negligible. In the 300WM, which I have 5 hunting rifles, one of which is a 5R and unfired, have all got SAAMI chambers, however, my comp barrels and 1 custom have the A191 chamber, which is far easier to tune across the board. Cheers. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
ES and seating depth.
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