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Rifles, Reloading, Optics, Equipment
Reloading
Bullet seater die
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<blockquote data-quote="Bart B" data-source="post: 1151019" data-attributes="member: 5302"><p>By "seating depth," I take that to mean cartridge case head to some point on the bullet outside the case. Not how deep the bullet's seated in the case mouth.</p><p></p><p>I don't sort nor prep bullets in any way. It's a waste of time for me and my objectives with the results I get.</p><p></p><p>Only heavy, high BC hunting bullet I've ever seated was a 30 caliber Sierra 200 grain SBT for a .300 Win Mag. Shot MOA at 1000 with .002" bullet runout, zero spread in base to ogive contact point with the rifling but still had a few thousandths spread in jump to the rifling in full length sized cases. I've no problem with a few thousandth spread in the distance bullets jump to the rifling. Besides, that distance grows .001" for every 5 to 50 shots depending on how much overbore your cartridge is as the throat erodes away from burning powder at high temperatures.</p><p></p><p>Virtually all bottleneck cases headspacing on their shoulders will have a few thousandths spread in bullet jump to the rifling if they're all seated to the same head to ogive rifling contact point. The case head is not the rear reference in determining bullet jump to the rifling; it doesn't touch the bolt face in properly resized cases. If you know how such bottleneck cases position themselves in the chamber when fired, you'll know why.</p></blockquote><p></p>
[QUOTE="Bart B, post: 1151019, member: 5302"] By "seating depth," I take that to mean cartridge case head to some point on the bullet outside the case. Not how deep the bullet's seated in the case mouth. I don't sort nor prep bullets in any way. It's a waste of time for me and my objectives with the results I get. Only heavy, high BC hunting bullet I've ever seated was a 30 caliber Sierra 200 grain SBT for a .300 Win Mag. Shot MOA at 1000 with .002" bullet runout, zero spread in base to ogive contact point with the rifling but still had a few thousandths spread in jump to the rifling in full length sized cases. I've no problem with a few thousandth spread in the distance bullets jump to the rifling. Besides, that distance grows .001" for every 5 to 50 shots depending on how much overbore your cartridge is as the throat erodes away from burning powder at high temperatures. Virtually all bottleneck cases headspacing on their shoulders will have a few thousandths spread in bullet jump to the rifling if they're all seated to the same head to ogive rifling contact point. The case head is not the rear reference in determining bullet jump to the rifling; it doesn't touch the bolt face in properly resized cases. If you know how such bottleneck cases position themselves in the chamber when fired, you'll know why. [/QUOTE]
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Reloading
Bullet seater die
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