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Rifles, Reloading, Optics, Equipment
Reloading
donuts to go
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<blockquote data-quote="VinceMule" data-source="post: 3001542" data-attributes="member: 122164"><p>Quote:</p><p></p><p>So, I started investigating the little devils to see what to do about them. Ignore them, ream them out from the inside or turn necks slightly into the neck-shoulder junction. Ignoring them does not seem to be an option although I did try to back off the depth that my neck bushings resize the neck and that seemed to minimize the donut bump while seating the bullet.</p><p></p><p>I don't think that you fully understand the problem. The doughnut is right at the shoulder-neck junction in the case. As the bullet goes through the doughnut, it puts a squeeze on the bullet, how much varies from doughnut case to the next doughnut case. Pressure spikes for sure. How much the pressure spikes is anyone's guess. How much damage the doughnut does to the bullet is another guess, as it may scrape off part of the jacket making it a smaller diameter.</p><p></p><p>How you deal with doughnuts is a function of the money you want to spend. K&M makes a carbide mandrel with a cutter on the end in 22 caliber. How you hold the case for the operation and how precise you want to be is another question.</p><p></p><p>In the meantime, I would suggest that you insert a bullet into each case after being fired. There may be enough clearance for you to slip a bullet down past the shoulder-neck junction. As you find a case with doughnuts, cull them aside and deal with them later as you figure out your style of dealing with this issue. If you do not have the clearance after firing to slip a bullet down the neck, then McMaster Carr sells pin gauges you can use.</p></blockquote><p></p>
[QUOTE="VinceMule, post: 3001542, member: 122164"] Quote: So, I started investigating the little devils to see what to do about them. Ignore them, ream them out from the inside or turn necks slightly into the neck-shoulder junction. Ignoring them does not seem to be an option although I did try to back off the depth that my neck bushings resize the neck and that seemed to minimize the donut bump while seating the bullet. I don't think that you fully understand the problem. The doughnut is right at the shoulder-neck junction in the case. As the bullet goes through the doughnut, it puts a squeeze on the bullet, how much varies from doughnut case to the next doughnut case. Pressure spikes for sure. How much the pressure spikes is anyone's guess. How much damage the doughnut does to the bullet is another guess, as it may scrape off part of the jacket making it a smaller diameter. How you deal with doughnuts is a function of the money you want to spend. K&M makes a carbide mandrel with a cutter on the end in 22 caliber. How you hold the case for the operation and how precise you want to be is another question. In the meantime, I would suggest that you insert a bullet into each case after being fired. There may be enough clearance for you to slip a bullet down past the shoulder-neck junction. As you find a case with doughnuts, cull them aside and deal with them later as you figure out your style of dealing with this issue. If you do not have the clearance after firing to slip a bullet down the neck, then McMaster Carr sells pin gauges you can use. [/QUOTE]
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Reloading
donuts to go
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