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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
.223 reloading cartridge problems
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<blockquote data-quote="Kennibear" data-source="post: 951059" data-attributes="member: 51650"><p>Classic results from uneven case length. This problem you are having is what the Lee Factory Crimp Die was designed to avoid. Buy one and forget this happening. You still have to trim but only to keep the rounds from jamming in the chamber neck.</p><p></p><p>Classic crimping dies require very uniform case length. Even taper crimp dies need uniform length but are a little more tolerant of length variations. Roll crimps come to an abrupt halt when the neck is jammed into the bullet and then telescope everything back towards the base.</p><p></p><p>I found you cannot use range pickups in 223/556 without trimming for uniformity in length before crimping. I now use Lee FC die almost exclusively.</p><p></p><p>KB</p></blockquote><p></p>
[QUOTE="Kennibear, post: 951059, member: 51650"] Classic results from uneven case length. This problem you are having is what the Lee Factory Crimp Die was designed to avoid. Buy one and forget this happening. You still have to trim but only to keep the rounds from jamming in the chamber neck. Classic crimping dies require very uniform case length. Even taper crimp dies need uniform length but are a little more tolerant of length variations. Roll crimps come to an abrupt halt when the neck is jammed into the bullet and then telescope everything back towards the base. I found you cannot use range pickups in 223/556 without trimming for uniformity in length before crimping. I now use Lee FC die almost exclusively. KB [/QUOTE]
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.223 reloading cartridge problems
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