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Rifles, Reloading, Optics, Equipment
Reloading
Neck diameter clearance on tight neck chamber
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<blockquote data-quote="Mikecr" data-source="post: 1838304" data-attributes="member: 1521"><p>With cartridges re-formed I anneal as needed during new brass preps.</p><p>Down the road, with chambers not of my control & having more clearances, I'll eventually need to re-anneal a batch back to baseline. This, when it gets to be a battle to produce matching seating forces.</p><p>With this I don't anneal all that often. I also don't trim beyond initial. Much of this because I keep clearances tighter and NEVER FL size. I can do this because I PLAN to do this, with every choice along the way(From bullet choice, to cartridge choice, to brass plan, to reamer design, to custom dies).</p><p></p><p>On another matter, I do not have issues with donut rebuilding, and I do not ever have to re-turn necks.</p><p>Where folks get there, it's due to their choices and not something that just happens to everyone.</p><p>Also, the notions that bullets need to drop freely into fired necks holds no basis. Tight neck chambers and necks turned for lower clearance in them can leave necks springing back into slight interference for seating. These would normally be further neck sized before actual seating. It's perfectly fine and normal for a lot of folks. For a fitted neck chamber, the fired necks spring right back to set interference so that no neck sizing is ever required. Works great, and nothing about those necks will ever change(never needing annealing).</p><p></p><p>Now if you choose a hunting capacity cartridge with high body taper and low shoulder angles, you will have to FL size. That sizing will roll brass thick towards thin up cases into shoulders, neck shoulder junction, and necks. You will eventually be trimming brass away, affecting case capacities. But if you would make those choices, your pockets and cases probably won't be lasting long anyway.</p><p>In contrast, if your choices lead to something like a 6Dasher or a 6.5x55AI, and you choose tighter clearances and tolerances, there is potential to burn out many barrels with the same handful of brass.</p><p></p><p>When you think there is no choice, and your basis is no more than what you think everyone else is doing, it means you do not understand it yet.</p><p>So if you want to do something (maybe go right) that a mob would persecute you for (while going left), step back to the crossroad choice and reconsider the possibilities. After all, You can always catch up with the mob, as they're not going anywhere..</p></blockquote><p></p>
[QUOTE="Mikecr, post: 1838304, member: 1521"] With cartridges re-formed I anneal as needed during new brass preps. Down the road, with chambers not of my control & having more clearances, I'll eventually need to re-anneal a batch back to baseline. This, when it gets to be a battle to produce matching seating forces. With this I don't anneal all that often. I also don't trim beyond initial. Much of this because I keep clearances tighter and NEVER FL size. I can do this because I PLAN to do this, with every choice along the way(From bullet choice, to cartridge choice, to brass plan, to reamer design, to custom dies). On another matter, I do not have issues with donut rebuilding, and I do not ever have to re-turn necks. Where folks get there, it's due to their choices and not something that just happens to everyone. Also, the notions that bullets need to drop freely into fired necks holds no basis. Tight neck chambers and necks turned for lower clearance in them can leave necks springing back into slight interference for seating. These would normally be further neck sized before actual seating. It's perfectly fine and normal for a lot of folks. For a fitted neck chamber, the fired necks spring right back to set interference so that no neck sizing is ever required. Works great, and nothing about those necks will ever change(never needing annealing). Now if you choose a hunting capacity cartridge with high body taper and low shoulder angles, you will have to FL size. That sizing will roll brass thick towards thin up cases into shoulders, neck shoulder junction, and necks. You will eventually be trimming brass away, affecting case capacities. But if you would make those choices, your pockets and cases probably won't be lasting long anyway. In contrast, if your choices lead to something like a 6Dasher or a 6.5x55AI, and you choose tighter clearances and tolerances, there is potential to burn out many barrels with the same handful of brass. When you think there is no choice, and your basis is no more than what you think everyone else is doing, it means you do not understand it yet. So if you want to do something (maybe go right) that a mob would persecute you for (while going left), step back to the crossroad choice and reconsider the possibilities. After all, You can always catch up with the mob, as they're not going anywhere.. [/QUOTE]
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Neck diameter clearance on tight neck chamber
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