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Rifles, Reloading, Optics, Equipment
Reloading
Polishing a body die?
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<blockquote data-quote="Bullet bumper" data-source="post: 836890" data-attributes="member: 17844"><p>If you have to lapp the die . This is how I would do it.</p><p>Machine up a mandrel that fits the neck part of the die neat but with an easy slide fit. Make it long enough to stick out both ends of the die about 2.5 inches.</p><p>Gaul up a section of the mandrel that will be inside the die . Machine up a base plug with a pouring hole to one side that centers the shaft in the base of the die then pour molten hard lead alloy into the die so it hardens around the shaft .</p><p>push it out when cold. Cut away any part of the lead lapp that you don't want to contact the die such as the shoulder and any sprue in the neck area . Put one end in an electric drill and load up the lead with cutting compound. Lube up the upper part of the shaft and insert it so the upper part of the shaft sticks out the top of the die and runs on centre inside the neck area of the die. Have at it for a while and reload the lapp with cutting compound as required . Have a measure every time you reload the lapp to get any idea of how much is being removed at a time. Re melt and recast the lapp when it gets loose and stops cutting . This way you have a chance of keeping it round as you go.</p></blockquote><p></p>
[QUOTE="Bullet bumper, post: 836890, member: 17844"] If you have to lapp the die . This is how I would do it. Machine up a mandrel that fits the neck part of the die neat but with an easy slide fit. Make it long enough to stick out both ends of the die about 2.5 inches. Gaul up a section of the mandrel that will be inside the die . Machine up a base plug with a pouring hole to one side that centers the shaft in the base of the die then pour molten hard lead alloy into the die so it hardens around the shaft . push it out when cold. Cut away any part of the lead lapp that you don't want to contact the die such as the shoulder and any sprue in the neck area . Put one end in an electric drill and load up the lead with cutting compound. Lube up the upper part of the shaft and insert it so the upper part of the shaft sticks out the top of the die and runs on centre inside the neck area of the die. Have at it for a while and reload the lapp with cutting compound as required . Have a measure every time you reload the lapp to get any idea of how much is being removed at a time. Re melt and recast the lapp when it gets loose and stops cutting . This way you have a chance of keeping it round as you go. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Polishing a body die?
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