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Rifles, Reloading, Optics, Equipment
Reloading
Custom sizing dies?
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<blockquote data-quote="Mikecr" data-source="post: 2825726" data-attributes="member: 1521"><p>What causes near web brass to hit an interference fit with a chamber is that the brass and/or chamber expanded too far.</p><p>This is from sloppy clearances -either by chamber design or oversizing.</p><p>AND/OR</p><p>Lack of breech support for intended pressure per cartridge area.</p><p>So the actual fix is to prevent brass & chamber from expanding too far.</p><p>Prevent the problem</p><p></p><p>Brass wants to go where it's been. This, regardless of clearances.</p><p>Once expanded to chamber, it will just go right back there with every successive firing.</p><p>So when the greater sizing band aid doesn't work all that well, people reach for belling the breech..</p><p>And all that sizing isn't free of course. It provides everything that oversizing always has.</p><p></p><p>While this IS funny to watch, I can at least point out that it doesn't have to be that way.</p><p>For example, when building a gun, you could just plan and act to mitigate the issue from the git go.</p></blockquote><p></p>
[QUOTE="Mikecr, post: 2825726, member: 1521"] What causes near web brass to hit an interference fit with a chamber is that the brass and/or chamber expanded too far. This is from sloppy clearances -either by chamber design or oversizing. AND/OR Lack of breech support for intended pressure per cartridge area. So the actual fix is to prevent brass & chamber from expanding too far. Prevent the problem Brass wants to go where it's been. This, regardless of clearances. Once expanded to chamber, it will just go right back there with every successive firing. So when the greater sizing band aid doesn't work all that well, people reach for belling the breech.. And all that sizing isn't free of course. It provides everything that oversizing always has. While this IS funny to watch, I can at least point out that it doesn't have to be that way. For example, when building a gun, you could just plan and act to mitigate the issue from the git go. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Custom sizing dies?
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