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Rifles, Reloading, Optics, Equipment
Reloading
7mm Rem Mag Reloading
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<blockquote data-quote="WildRose" data-source="post: 1281697" data-attributes="member: 30902"><p>I will neck size only for 2-3 firings and then on the next firing partially FL size but not all the way down unless I start seeing problems chambering a round.</p><p></p><p>Each time you fire a round the brass swells and stretches to perfectly match your chamber. If there's any rough spots or ridges sometimes this can cause cases to want to stick that are not full length resized.</p><p></p><p>Every chamber is unique, even if you did identical barrels one after the other on the same machine using the same tools there will be slight differences between the two.</p><p></p><p>You get the best concentricity out of rounds that fit perfectly to your chamber which lends to greater accuracy.</p><p></p><p>What that boils down to is that you have to kind of feel your way through it and decide when you need to FL size your brass.</p></blockquote><p></p>
[QUOTE="WildRose, post: 1281697, member: 30902"] I will neck size only for 2-3 firings and then on the next firing partially FL size but not all the way down unless I start seeing problems chambering a round. Each time you fire a round the brass swells and stretches to perfectly match your chamber. If there's any rough spots or ridges sometimes this can cause cases to want to stick that are not full length resized. Every chamber is unique, even if you did identical barrels one after the other on the same machine using the same tools there will be slight differences between the two. You get the best concentricity out of rounds that fit perfectly to your chamber which lends to greater accuracy. What that boils down to is that you have to kind of feel your way through it and decide when you need to FL size your brass. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
7mm Rem Mag Reloading
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