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Rifles, Reloading, Optics, Equipment
Reloading
Run-out help needed
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<blockquote data-quote="crazyjz" data-source="post: 736737" data-attributes="member: 13372"><p>All of the responses you have received thus far will help you chase down and eliminate the majority of our runout problems.</p><p> </p><p>One other process that can't be excluded is neck turning. Depending on what type of tool you are using to measure your runout, the variations in the thickness of the neck may well be showing up as runout on your guage.</p><p> </p><p>I try to get my brass in fairly large batches. After following most of the suggestions you have already received, ie, form firing, trim to length, chamfering, etc., I turn the necks of all brass to the same dimension. Brass that appears to require extreme metal removal or none at all are moved to a separate pile for disposal. (Give them away to less picky person!)</p><p> </p><p>Just about without exception, the trimmer will shave a small amount of brass from the necks of cases in odd and unpredictable patterns. Basically, if you have prepped your brass properly, it is shaving off the thick spots.</p><p> </p><p>The brass cases will now, for the most part, have fairly similar and consistent thickness and tension.</p><p> </p><p>Make sure the case necks are clean and smooth prior to using a good sleeve type die to seat your bullets. I chuck up a appropriate size barrel brush in my cordless drill. I have some powdered mica that I put on the brush and give the neck a little cleaning just prior to loading.</p><p> </p><p>Good luck.</p></blockquote><p></p>
[QUOTE="crazyjz, post: 736737, member: 13372"] All of the responses you have received thus far will help you chase down and eliminate the majority of our runout problems. One other process that can't be excluded is neck turning. Depending on what type of tool you are using to measure your runout, the variations in the thickness of the neck may well be showing up as runout on your guage. I try to get my brass in fairly large batches. After following most of the suggestions you have already received, ie, form firing, trim to length, chamfering, etc., I turn the necks of all brass to the same dimension. Brass that appears to require extreme metal removal or none at all are moved to a separate pile for disposal. (Give them away to less picky person!) Just about without exception, the trimmer will shave a small amount of brass from the necks of cases in odd and unpredictable patterns. Basically, if you have prepped your brass properly, it is shaving off the thick spots. The brass cases will now, for the most part, have fairly similar and consistent thickness and tension. Make sure the case necks are clean and smooth prior to using a good sleeve type die to seat your bullets. I chuck up a appropriate size barrel brush in my cordless drill. I have some powdered mica that I put on the brush and give the neck a little cleaning just prior to loading. Good luck. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Run-out help needed
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