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Rifles, Reloading, Optics, Equipment
Reloading
COAL using CBTO from Hornady OAL gauge significantly shorter than book COAL?
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<blockquote data-quote="MagnumManiac" data-source="post: 3070829" data-attributes="member: 10755"><p>I found the easiest and quickest way to find the rifling and then measure the CBTO is to cut 2 1mm slits in the neck, size the case, carefully put it in the chamber, close the bolt lifting and lowering the handle a few times with the ejector removed, then carefully remove it. Measure both OAL & CBTO after this. I normally do this a few times to average results, but rarely does this method alter much.</p><p>CBTO is different to COAL, maybe this is your confusion?</p><p></p><p>Cheers.</p></blockquote><p></p>
[QUOTE="MagnumManiac, post: 3070829, member: 10755"] I found the easiest and quickest way to find the rifling and then measure the CBTO is to cut 2 1mm slits in the neck, size the case, carefully put it in the chamber, close the bolt lifting and lowering the handle a few times with the ejector removed, then carefully remove it. Measure both OAL & CBTO after this. I normally do this a few times to average results, but rarely does this method alter much. CBTO is different to COAL, maybe this is your confusion? Cheers. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
COAL using CBTO from Hornady OAL gauge significantly shorter than book COAL?
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