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Rifles, Reloading, Optics, Equipment
Reloading
Crimping Belted Magnum Loads… to do or not to do?
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<blockquote data-quote="Pdvdh" data-source="post: 1205179" data-attributes="member: 4191"><p>The benefit of the Lee Factory Crimp Die (LFCD) is that it uses a compressing collet to crimp the case mouth. The collet acts perpendicular to the case mouth when imparting the crimp. This means the LFCD is largely insensitive to cartridge casing lengths and the degree of crimp applied is readily adjustable on the casings. Visit the Lee website for further visual and text understanding.</p><p></p><p>The majority of, if not all, other crimping dies impart the crimp as the case neck moves longitudinally into the crimp constriction in the seating die. The degree of crimp is dependent on the thickness of the case neck, and the length of the case neck crimped.</p><p></p><p>The LFCDs are inexpensive. They make them for a number of factory cartridges. Their web site also states that they'll make them in some oddball cartridges on a special order basis for an extra fee, which necessitates a delayed time for manufacture of the die for the uncommon cartridges.</p><p></p><p>I'm going to backtrack on the comment I made earlier about using a chamber reamer to customize a LFCD to a wildcatted cartridge. I don't think it would be possible as the neck and throat cutting portion of the chamber reamer would also cut/remove the steel within the collet that imparts the crimp.</p><p>Paul</p></blockquote><p></p>
[QUOTE="Pdvdh, post: 1205179, member: 4191"] The benefit of the Lee Factory Crimp Die (LFCD) is that it uses a compressing collet to crimp the case mouth. The collet acts perpendicular to the case mouth when imparting the crimp. This means the LFCD is largely insensitive to cartridge casing lengths and the degree of crimp applied is readily adjustable on the casings. Visit the Lee website for further visual and text understanding. The majority of, if not all, other crimping dies impart the crimp as the case neck moves longitudinally into the crimp constriction in the seating die. The degree of crimp is dependent on the thickness of the case neck, and the length of the case neck crimped. The LFCDs are inexpensive. They make them for a number of factory cartridges. Their web site also states that they'll make them in some oddball cartridges on a special order basis for an extra fee, which necessitates a delayed time for manufacture of the die for the uncommon cartridges. I'm going to backtrack on the comment I made earlier about using a chamber reamer to customize a LFCD to a wildcatted cartridge. I don't think it would be possible as the neck and throat cutting portion of the chamber reamer would also cut/remove the steel within the collet that imparts the crimp. Paul [/QUOTE]
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Crimping Belted Magnum Loads… to do or not to do?
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