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Rifles, Reloading, Optics, Equipment
Reloading
Measuring CBTO - What is wrong with my approach?
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<blockquote data-quote="dragon798" data-source="post: 2383316" data-attributes="member: 51909"><p>So I'm curious as to how removing the ejector and extractor would help to get a more accurate measurement? Unless that's the way you fire the rifle all the time. Seems to me you want the ejector to to push the cartridge in and maintain the headspace, thereby giving you a more accurate CBTO reading. It also seems to me that, removing the ejector could cause serious issues if you want to load into the lands, as replacing the ejector would then cause the cartridge to be forced 3 or 4 thousandths further forward. Thus moving the bullet the same amount further into the lands. I might be completely off base here and if so, please explain how. Ultimately I would like to say, I use the OP's method, basically, and have realized that this is a reference measurement. It is not a number that can be used from bullet to bullet, or gun to gun or even from one person to the next. It is a reference you use for a particular bullet in a particular load. If any part of the process, tools or components changes, so does the number. Therefore, do it the way you find best and stick to it.</p></blockquote><p></p>
[QUOTE="dragon798, post: 2383316, member: 51909"] So I'm curious as to how removing the ejector and extractor would help to get a more accurate measurement? Unless that's the way you fire the rifle all the time. Seems to me you want the ejector to to push the cartridge in and maintain the headspace, thereby giving you a more accurate CBTO reading. It also seems to me that, removing the ejector could cause serious issues if you want to load into the lands, as replacing the ejector would then cause the cartridge to be forced 3 or 4 thousandths further forward. Thus moving the bullet the same amount further into the lands. I might be completely off base here and if so, please explain how. Ultimately I would like to say, I use the OP's method, basically, and have realized that this is a reference measurement. It is not a number that can be used from bullet to bullet, or gun to gun or even from one person to the next. It is a reference you use for a particular bullet in a particular load. If any part of the process, tools or components changes, so does the number. Therefore, do it the way you find best and stick to it. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Measuring CBTO - What is wrong with my approach?
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