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Rifles, Reloading, Optics, Equipment
Reloading
Bushing Dies How To?
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<blockquote data-quote="dok7mm" data-source="post: 1705172" data-attributes="member: 90080"><p>I have Redding bushing dies and they won't size the neck down with bushing removed, nor will the body die reduce the neck ID. So, I bought Forester FL dies for most rifles.</p><p></p><p>I will add that bushings push variance of unturned necks inside the neck diameter, causing that variance to be reflected on your tension. Spring back variance is away from the bullet, so that could also be another problem.</p><p></p><p>A mandrel pushes neck wall variance to the outside, leaving a near perfect ID, plus spring back is towards the bullet. I use Imperial Dry lube on a Q-TIP inside the neck when expanding with a mandrel. Seating pressures are very smooth and consistent and I have low SDs & ES.</p><p></p><p>I believe that when using unturned or skimmed brass, the mandrel is the way to go. I do have several rifles I still use bushing dies on. Brass is turned for .004" chamber neck clearance. But I use a .003" under caliber bushing and then a .002" mandrel to set my final tension. Hope this makes sense!</p></blockquote><p></p>
[QUOTE="dok7mm, post: 1705172, member: 90080"] I have Redding bushing dies and they won't size the neck down with bushing removed, nor will the body die reduce the neck ID. So, I bought Forester FL dies for most rifles. I will add that bushings push variance of unturned necks inside the neck diameter, causing that variance to be reflected on your tension. Spring back variance is away from the bullet, so that could also be another problem. A mandrel pushes neck wall variance to the outside, leaving a near perfect ID, plus spring back is towards the bullet. I use Imperial Dry lube on a Q-TIP inside the neck when expanding with a mandrel. Seating pressures are very smooth and consistent and I have low SDs & ES. I believe that when using unturned or skimmed brass, the mandrel is the way to go. I do have several rifles I still use bushing dies on. Brass is turned for .004" chamber neck clearance. But I use a .003" under caliber bushing and then a .002" mandrel to set my final tension. Hope this makes sense! [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Bushing Dies How To?
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