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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
25 Creedmoor
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<blockquote data-quote="imartin" data-source="post: 2437314" data-attributes="member: 106328"><p>Lance, looks like you have a winner there. Would you mind walking me through the thought process of using SRP vs LRP as well as necking up from 6mm vs necking down from 6.5mm? Prior to reading your post here, if I had built a 25 CM last month I would have necked down 6.5 LRP brass with my only reasoning being that .264 to .257 is a smaller gap than .243 to .257 and I have more LRP's than SRP's. I will admit I'm completely ignorant to the pros & cons of using SRP vs LRP other than I assume LR is hotter. Same thing with necking up or down, ignorance. If I had to venture a guess the primers would relate to es/sd consistency and necking up with mandrel results in less time spent on brass prep. Perhaps it's just what you had available. Just trying to learn something new.</p></blockquote><p></p>
[QUOTE="imartin, post: 2437314, member: 106328"] Lance, looks like you have a winner there. Would you mind walking me through the thought process of using SRP vs LRP as well as necking up from 6mm vs necking down from 6.5mm? Prior to reading your post here, if I had built a 25 CM last month I would have necked down 6.5 LRP brass with my only reasoning being that .264 to .257 is a smaller gap than .243 to .257 and I have more LRP's than SRP's. I will admit I'm completely ignorant to the pros & cons of using SRP vs LRP other than I assume LR is hotter. Same thing with necking up or down, ignorance. If I had to venture a guess the primers would relate to es/sd consistency and necking up with mandrel results in less time spent on brass prep. Perhaps it's just what you had available. Just trying to learn something new. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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25 Creedmoor
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