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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Case Runout
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<blockquote data-quote="Brent" data-source="post: 24130" data-attributes="member: 99"><p>Al,</p><p>I don't use the Dillon in the progressive sense that it is intended way anyway, I size all of them in the first position then do all my prep work and seat in the second station. </p><p></p><p>I have a carbide expander ball for the Redding dies and I use it to straighten out the screwed up necks on new brass and it works great, no lube needed and no necks to delube later. My 308 die doesn't leave too much tension without using the expander ball so it isn't used on it. </p><p></p><p>The check I did on the 300 Ultra FL sized brass used the expander ball because it squeezes the cases down too far unlike the 308win die I have. I haven't checked the Ultras runout without the expander used. </p><p></p><p>I was going to turn the necks, at least clean up 80% or better then I wouldn't need the expander anymore with the FL die, tension would then be about right with the thinner necks. </p><p></p><p>My pilot for the Forester turner is a tad too small and the case can literally be held up off the pilot and when the collet is tightened on the casehead and the case will stay off center of the pilot and cut the neck thinner on the side the neck it pushed tward when tightened, get the pilot too big and there a pain to work with too.</p><p></p><p>When I found the chambers neck to be off center I now wonder if the neck is centered with the bore or the case body is. </p><p></p><p>I had planned on leaving some of the neck unsized to help center the neck a little better with the loose factory specs and all, but now I wonder if I'm better off seating the bullets hard into the lands to center things up and leaving the necks sized all the way and loose to let the bullet center up, hell I don't know. I thought I might index the cases to the same position they were fireformed at and see how this worked too. I see a few tests down the road. Interesting little details can consume lots of time at the bench. I hope they shoot well with the neck sized cases reguardless of the runout, am I asking too much?</p></blockquote><p></p>
[QUOTE="Brent, post: 24130, member: 99"] Al, I don't use the Dillon in the progressive sense that it is intended way anyway, I size all of them in the first position then do all my prep work and seat in the second station. I have a carbide expander ball for the Redding dies and I use it to straighten out the screwed up necks on new brass and it works great, no lube needed and no necks to delube later. My 308 die doesn't leave too much tension without using the expander ball so it isn't used on it. The check I did on the 300 Ultra FL sized brass used the expander ball because it squeezes the cases down too far unlike the 308win die I have. I haven't checked the Ultras runout without the expander used. I was going to turn the necks, at least clean up 80% or better then I wouldn't need the expander anymore with the FL die, tension would then be about right with the thinner necks. My pilot for the Forester turner is a tad too small and the case can literally be held up off the pilot and when the collet is tightened on the casehead and the case will stay off center of the pilot and cut the neck thinner on the side the neck it pushed tward when tightened, get the pilot too big and there a pain to work with too. When I found the chambers neck to be off center I now wonder if the neck is centered with the bore or the case body is. I had planned on leaving some of the neck unsized to help center the neck a little better with the loose factory specs and all, but now I wonder if I'm better off seating the bullets hard into the lands to center things up and leaving the necks sized all the way and loose to let the bullet center up, hell I don't know. I thought I might index the cases to the same position they were fireformed at and see how this worked too. I see a few tests down the road. Interesting little details can consume lots of time at the bench. I hope they shoot well with the neck sized cases reguardless of the runout, am I asking too much? [/QUOTE]
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