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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Crimp-Velocity
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<blockquote data-quote="436" data-source="post: 2792603" data-attributes="member: 16609"><p>I crimp "most" my reloads using a Lee Crimp die, but not for velocity reasons I like a few here have found some good reasons to do so with my landlords, which works for me and others here it seems. I also noticed sometimes the cartridge "neck and bullet" concentricity are a little better, but that's getting into cannelure and non-cannelure bullet stuff.</p><p></p><p>Now with that said; I have always used a very heavy LEE crimp with my subsonic loads to allow the small about of fast-burning power in the case to get to the same pressure environment in the case before the bullet is released giving me better working SD and external velocity. So, does a crimp help with velocity? well here it does. Just my 0.2 Cheers.</p></blockquote><p></p>
[QUOTE="436, post: 2792603, member: 16609"] I crimp "most" my reloads using a Lee Crimp die, but not for velocity reasons I like a few here have found some good reasons to do so with my landlords, which works for me and others here it seems. I also noticed sometimes the cartridge "neck and bullet" concentricity are a little better, but that's getting into cannelure and non-cannelure bullet stuff. Now with that said; I have always used a very heavy LEE crimp with my subsonic loads to allow the small about of fast-burning power in the case to get to the same pressure environment in the case before the bullet is released giving me better working SD and external velocity. So, does a crimp help with velocity? well here it does. Just my 0.2 Cheers. [/QUOTE]
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