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Rifles, Reloading, Optics, Equipment
Reloading
Question about crimping rounds
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<blockquote data-quote="Kevin Thomas" data-source="post: 430647" data-attributes="member: 15748"><p>LordSycthe,</p><p> </p><p>Actually, you don't even need to crimp for autoloaders (rifles, anyway) if you've got proper neck tension. Cannelures and crimping are two things that virtually always degrade accuracy, and should be avoided if at all possible. The military crimps their rounds, but do so knowing that they're trading off a finite degree of accuracy in so doing. The also apply an asphaltum sealant around the inside of the case neck, which also does little to enhance accuracy. Again, functionality and durability is more important to them than accuracy. In our hunting ammunition, we'll never see the kind of abuse that military ammo will, so we don't need to jump through the same hoops they do. </p><p> </p><p>If you absolutely must crimp, I'll give a +1 to the comments that others have made regarding the Lee Factory crimp dies. They do a super job, very uniform and easy to control. Avoid it if you can, but if you've got to do it, that's the way to go.</p><p> </p><p>Kevin Thomas</p><p>Lapua USA</p></blockquote><p></p>
[QUOTE="Kevin Thomas, post: 430647, member: 15748"] LordSycthe, Actually, you don't even need to crimp for autoloaders (rifles, anyway) if you've got proper neck tension. Cannelures and crimping are two things that virtually always degrade accuracy, and should be avoided if at all possible. The military crimps their rounds, but do so knowing that they're trading off a finite degree of accuracy in so doing. The also apply an asphaltum sealant around the inside of the case neck, which also does little to enhance accuracy. Again, functionality and durability is more important to them than accuracy. In our hunting ammunition, we'll never see the kind of abuse that military ammo will, so we don't need to jump through the same hoops they do. If you absolutely must crimp, I'll give a +1 to the comments that others have made regarding the Lee Factory crimp dies. They do a super job, very uniform and easy to control. Avoid it if you can, but if you've got to do it, that's the way to go. Kevin Thomas Lapua USA [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Question about crimping rounds
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