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<blockquote data-quote="rwleonard" data-source="post: 55425" data-attributes="member: 2088"><p>Hey Old Fart, </p><p></p><p> I just recently starting turning necks for my varmint rifes (not tight-necked BR chambers). I found a few things out:</p><p></p><p>1. It is a royal pain to try to set the turner up to turn necks to a specific thickness.</p><p></p><p>2. It is very easy to set the turner up to just clean the necks up to where they will all show less than .001" variance.</p><p></p><p>3. Cleaning up the necks shows a definite improvement in seated-bullet run-outs. The reduction in loaded-round run-out is proportional to the improvement in neck uniformity.</p><p></p><p> The way I set up the turner for cleaning-up necks is this: I take a piece of brass from the lot to be turned that shows some of the worst uniformity of the bunch. I find and mark the thinnest spot on that neck, and then adjust the cutter to just touch the neck about 30 degrees to one side or the other of that spot. This usually results in cleaning-up about 75-80% of the neck on the worst ones and very little on the best, and gets uniformity down to under .001". If the necks still show more than .001" variance, I will take that same piece of "bad" brass a adjust the cutter to touch a little closer to the low spot. I repeat this until all brass cleans-up to under .001". </p><p></p><p> If anyone else has what they think is a better method, I would be interested in hearing it. I am just getting started in this neck-turning thing.</p><p></p><p> Rick</p></blockquote><p></p>
[QUOTE="rwleonard, post: 55425, member: 2088"] Hey Old Fart, I just recently starting turning necks for my varmint rifes (not tight-necked BR chambers). I found a few things out: 1. It is a royal pain to try to set the turner up to turn necks to a specific thickness. 2. It is very easy to set the turner up to just clean the necks up to where they will all show less than .001" variance. 3. Cleaning up the necks shows a definite improvement in seated-bullet run-outs. The reduction in loaded-round run-out is proportional to the improvement in neck uniformity. The way I set up the turner for cleaning-up necks is this: I take a piece of brass from the lot to be turned that shows some of the worst uniformity of the bunch. I find and mark the thinnest spot on that neck, and then adjust the cutter to just touch the neck about 30 degrees to one side or the other of that spot. This usually results in cleaning-up about 75-80% of the neck on the worst ones and very little on the best, and gets uniformity down to under .001". If the necks still show more than .001" variance, I will take that same piece of "bad" brass a adjust the cutter to touch a little closer to the low spot. I repeat this until all brass cleans-up to under .001". If anyone else has what they think is a better method, I would be interested in hearing it. I am just getting started in this neck-turning thing. Rick [/QUOTE]
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