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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
6.5-284 Norma to .284 Win conversion
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<blockquote data-quote="shortgrass" data-source="post: 1109914" data-attributes="member: 24284"><p>Then you got lucky, Lefty. I find 85%-90% of the time new brass is needed. #1 either the 'old' brass is work hardened and doesn't want to re-size back to original specs, or #2 the new chamber is so much smaller in dimension that re-sizing is impossible at all. That can and does occur even when a reamers is 'new' and never been used before and even if the same reamer has cut both chambers. As for "necking up",, I'll neck up only as a last resort. I'd much rather neck down. Necking up makes for thin neck walls (which can make for irregular ignition in large capacity cases) , smaller than I like neck diameters (with a bullet seated) and short cartridge case OAL. Custom barrels are usually installed in the quest for better accuracy, only makes sense to start off with fresh brass. With the current brass shortages, this can be a challenge and costly. But if you can afford a new custom barrel the cost of new brass should of little concern. Face it,,, this hobby/activity ain't a cheap one! I just have to laugh to myself when those who think they're going to able to use the brass they have, that was fired in a factory chamber, in a new custom chambered barrel. Seems you can tell 'um half a dozen times and it's like they can't hear you.</p></blockquote><p></p>
[QUOTE="shortgrass, post: 1109914, member: 24284"] Then you got lucky, Lefty. I find 85%-90% of the time new brass is needed. #1 either the 'old' brass is work hardened and doesn't want to re-size back to original specs, or #2 the new chamber is so much smaller in dimension that re-sizing is impossible at all. That can and does occur even when a reamers is 'new' and never been used before and even if the same reamer has cut both chambers. As for "necking up",, I'll neck up only as a last resort. I'd much rather neck down. Necking up makes for thin neck walls (which can make for irregular ignition in large capacity cases) , smaller than I like neck diameters (with a bullet seated) and short cartridge case OAL. Custom barrels are usually installed in the quest for better accuracy, only makes sense to start off with fresh brass. With the current brass shortages, this can be a challenge and costly. But if you can afford a new custom barrel the cost of new brass should of little concern. Face it,,, this hobby/activity ain't a cheap one! I just have to laugh to myself when those who think they're going to able to use the brass they have, that was fired in a factory chamber, in a new custom chambered barrel. Seems you can tell 'um half a dozen times and it's like they can't hear you. [/QUOTE]
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6.5-284 Norma to .284 Win conversion
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