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Rifles, Reloading, Optics, Equipment
Reloading
Upgrading Dies...Which ones?
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<blockquote data-quote="7stw" data-source="post: 622663" data-attributes="member: 22854"><p>One thing that I have noticed and corrected over the years of reloading, and particularly in your situation, is that a concentricity issue,often originates at the resizing stage. It all begins at the set up off the die, and how and where you lube. Case hardening also comes into play here. To properly set up the die, you must first loosen all the lock collars, and set screws. Back off the collar nut on the main body. Run a case up into the die, and just before you reach the to, with pressure still on the ram, turn down the lock nut and secure it into place. Now the die body is SQUARE to the press and your brass. Now for the neck . Loosen the lock nuts on the recalling stem, and with that same piece of brass, run it down, until the expander ball is in the case neck. Now lock it up. Now, in theory, your die is square with the press, and the expander ball, is concentric to center bore of the die. If the expander is not centered, and if the inside of the neck is not sufficiently lubes, you can, and will"bend" the neck, when the expander ball goes through it. </p><p>I was having concentricity issues a few years ago. Ones that I could measure right after resizing. I reset ALL my dies, and instantly went to no or very little case tuning. Another thing that does come into play, is the condition of your press. That was the other thing that I ended up changing, due to ram play, and pin wear. I know it was a long story, but sometimes, and more often than not, what you have is just fine, it need to be fine tuned. Hope that some of these things might be of help.</p><p>AIM SMALL, MISS SMALL, lightbulb gun) 7 STW</p></blockquote><p></p>
[QUOTE="7stw, post: 622663, member: 22854"] One thing that I have noticed and corrected over the years of reloading, and particularly in your situation, is that a concentricity issue,often originates at the resizing stage. It all begins at the set up off the die, and how and where you lube. Case hardening also comes into play here. To properly set up the die, you must first loosen all the lock collars, and set screws. Back off the collar nut on the main body. Run a case up into the die, and just before you reach the to, with pressure still on the ram, turn down the lock nut and secure it into place. Now the die body is SQUARE to the press and your brass. Now for the neck . Loosen the lock nuts on the recalling stem, and with that same piece of brass, run it down, until the expander ball is in the case neck. Now lock it up. Now, in theory, your die is square with the press, and the expander ball, is concentric to center bore of the die. If the expander is not centered, and if the inside of the neck is not sufficiently lubes, you can, and will"bend" the neck, when the expander ball goes through it. I was having concentricity issues a few years ago. Ones that I could measure right after resizing. I reset ALL my dies, and instantly went to no or very little case tuning. Another thing that does come into play, is the condition of your press. That was the other thing that I ended up changing, due to ram play, and pin wear. I know it was a long story, but sometimes, and more often than not, what you have is just fine, it need to be fine tuned. Hope that some of these things might be of help. AIM SMALL, MISS SMALL, lightbulb gun) 7 STW [/QUOTE]
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Upgrading Dies...Which ones?
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