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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Seating Dies
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<blockquote data-quote="Mysticplayer" data-source="post: 26359" data-attributes="member: 8947"><p>This may go against the grain of some but this is based on my experience. Don't start looking for "better" seating dies until you check what you already have.</p><p></p><p>If your loaded rounds show runout above 5 thou, start by looking at the sizing die. This is the biggest area for problems and is mostly due to the expander rod and ball. Switch to a Lee collet or bushing die. Most of your runout problem is solved.</p><p></p><p>If runout still does not reduce, it should, then look for a seating die where the die body and case are a very close fit. Most seating plugs are machined true to the die body so this is not the problem. The area of problem is if the case is not supported while the bullet is seated and "bends".</p><p></p><p>A specialty die will only help if it addresses this problem. The Lee custom die set at $50 is hard to beat. Just ask that the seating die be only a couple of thou bigger then the case. Voila perfect dies.</p><p></p><p>A quality gunsmith inline die set does the same thing, just for more money.</p><p></p><p>I have been lucky that I have been able to find commercial dies that were a good fit with the cases/chambers I have in my rifles. The bullets are seated straight. Take a fireformed case with you to the store and try it in different dies. You will see that some are a much better fit then others irregardless of brand or price.</p><p></p><p>The Forster BR die is also good. Although the Hornady die has a moving sleeve, the dimensions of that sleeve are usually very generous so don't help much. If you can machine a better fitting sleeve, awesome dies for little money.</p><p></p><p>The micrometer adjustment tool only serves to help you adjust OAL - an expensive widget. I prefer to lock down my adjustments using the standard nut.</p><p></p><p>Check or change your sizing die and most of your issues should get resolved...</p><p></p><p>Jerry</p></blockquote><p></p>
[QUOTE="Mysticplayer, post: 26359, member: 8947"] This may go against the grain of some but this is based on my experience. Don't start looking for "better" seating dies until you check what you already have. If your loaded rounds show runout above 5 thou, start by looking at the sizing die. This is the biggest area for problems and is mostly due to the expander rod and ball. Switch to a Lee collet or bushing die. Most of your runout problem is solved. If runout still does not reduce, it should, then look for a seating die where the die body and case are a very close fit. Most seating plugs are machined true to the die body so this is not the problem. The area of problem is if the case is not supported while the bullet is seated and "bends". A specialty die will only help if it addresses this problem. The Lee custom die set at $50 is hard to beat. Just ask that the seating die be only a couple of thou bigger then the case. Voila perfect dies. A quality gunsmith inline die set does the same thing, just for more money. I have been lucky that I have been able to find commercial dies that were a good fit with the cases/chambers I have in my rifles. The bullets are seated straight. Take a fireformed case with you to the store and try it in different dies. You will see that some are a much better fit then others irregardless of brand or price. The Forster BR die is also good. Although the Hornady die has a moving sleeve, the dimensions of that sleeve are usually very generous so don't help much. If you can machine a better fitting sleeve, awesome dies for little money. The micrometer adjustment tool only serves to help you adjust OAL - an expensive widget. I prefer to lock down my adjustments using the standard nut. Check or change your sizing die and most of your issues should get resolved... Jerry [/QUOTE]
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