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Rifles, Reloading, Optics, Equipment
Reloading
Why I Crimp
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<blockquote data-quote="Dirtrax" data-source="post: 2051177" data-attributes="member: 78945"><p>Not having a Lee FCD die for my 7mm Practical I went a different route. This results from having seen benefits (some more and some less) from crimping. I drilled out the "cap" on my Lee collet die. This allowed the seated bullet to pass thru. Reductions in neck OD were set at .00075", .0005", and .00025". The latter showed a noticeable improvement at 100yds. .2" +/- groups for three/3 shot groups. This isn't beyond what I've seen before but the consistency was high considering the rate of fire and time behind the trigger lately. I don't have any chronograph data because it's frickin' cold in the north of Idaho and my time is limited due to work demands. So take it for what it is.</p></blockquote><p></p>
[QUOTE="Dirtrax, post: 2051177, member: 78945"] Not having a Lee FCD die for my 7mm Practical I went a different route. This results from having seen benefits (some more and some less) from crimping. I drilled out the “cap” on my Lee collet die. This allowed the seated bullet to pass thru. Reductions in neck OD were set at .00075”, .0005”, and .00025”. The latter showed a noticeable improvement at 100yds. .2” +/- groups for three/3 shot groups. This isn’t beyond what I’ve seen before but the consistency was high considering the rate of fire and time behind the trigger lately. I don’t have any chronograph data because it’s frickin’ cold in the north of Idaho and my time is limited due to work demands. So take it for what it is. [/QUOTE]
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Why I Crimp
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