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Rifles, Reloading, Optics, Equipment
Reloading
Old Fired Cases Won't Chamber in New Barrel
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<blockquote data-quote="azarcher10x" data-source="post: 2611591" data-attributes="member: 57286"><p>Like others have said, you need a small base die. Thay do nothing to the shoulder, and will size the base. I had a similar issue after neck sizing only on some 300 RUM. Difference was, they didn't want to eject after firing. My first thoughts were over pressure, but the weren't loaded hot at all. It only started after the second loading. Basically, the brass lost it's "memory." Even after FL sizing, there was still an issue. I ran all my brass and loaded rounds through a small base die, and problem solved! The brass needs some room to expand and retract on firing. If you're starting out where you're having trouble getting them to chamber, it's only going to be worse if some manage to chamber.</p></blockquote><p></p>
[QUOTE="azarcher10x, post: 2611591, member: 57286"] Like others have said, you need a small base die. Thay do nothing to the shoulder, and will size the base. I had a similar issue after neck sizing only on some 300 RUM. Difference was, they didn't want to eject after firing. My first thoughts were over pressure, but the weren't loaded hot at all. It only started after the second loading. Basically, the brass lost it's "memory." Even after FL sizing, there was still an issue. I ran all my brass and loaded rounds through a small base die, and problem solved! The brass needs some room to expand and retract on firing. If you're starting out where you're having trouble getting them to chamber, it's only going to be worse if some manage to chamber. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Old Fired Cases Won't Chamber in New Barrel
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