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Rifles, Reloading, Optics, Equipment
Reloading
Neck Turning with RCBS Trim Pro Power - why not?
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<blockquote data-quote="QuietTexan" data-source="post: 2428798" data-attributes="member: 116181"><p>3 thou+ variance, the junk part of the brass description is accurate <img class="smilie smilie--emoji" loading="lazy" alt="👍" title="Thumbs up :thumbsup:" src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f44d.png" data-shortname=":thumbsup:" /> The last box of Lapua I cracked open, none of the ten cases I selected randomly to measure neck thickness on varied more than 0.0008", average was 0.0006". </p><p></p><p></p><p>You should basically start at this point with decent brass, then when you skim them down to between 50-75% of the neck cut you should be at a less than a half-thou variance. If you fully turn them down you should be at 0.0001".</p><p></p><p>This kind of turning begs the question though, what's your neck clearance, and what's "too thin" for your chamber? I wouldn't clean up anything past 80% unless it's tight necked and needs it.</p></blockquote><p></p>
[QUOTE="QuietTexan, post: 2428798, member: 116181"] 3 thou+ variance, the junk part of the brass description is accurate 👍 The last box of Lapua I cracked open, none of the ten cases I selected randomly to measure neck thickness on varied more than 0.0008", average was 0.0006". You should basically start at this point with decent brass, then when you skim them down to between 50-75% of the neck cut you should be at a less than a half-thou variance. If you fully turn them down you should be at 0.0001". This kind of turning begs the question though, what's your neck clearance, and what's "too thin" for your chamber? I wouldn't clean up anything past 80% unless it's tight necked and needs it. [/QUOTE]
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Neck Turning with RCBS Trim Pro Power - why not?
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