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Rifles, Reloading, Optics, Equipment
Reloading
6.5-284 coal question
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<blockquote data-quote="Mikecr" data-source="post: 895724" data-attributes="member: 1521"><p>Cartridge base to ogive(CBTO)</p><p>Cartridge OAL(COAL).</p><p></p><p>Gray R, I don't know why you chose the COAL that jammed, but you may be finding that it's not a good practice to blindly follow books here. And you should not have charged ammo until working this out.</p><p>There are a bunch of methods used to find max length, and you can search them here for sure.</p><p>With your new finished barrel you should 1st make an uncharged dummy round at max length for every different bullet you intend to use. You measure this with your chosen tool for CBTO and log the info as a reference. </p><p>Commit to using the same measuring tools/methods forevermore, because this is YOUR standard(better than any other). Now when you want bullets ~10thou off lands for example, maybe because your barrel shoots best there, you just make your ammo 10thou shorter -as measured your way.</p><p>Important is that you can repeat it for every round you make.</p></blockquote><p></p>
[QUOTE="Mikecr, post: 895724, member: 1521"] Cartridge base to ogive(CBTO) Cartridge OAL(COAL). Gray R, I don't know why you chose the COAL that jammed, but you may be finding that it's not a good practice to blindly follow books here. And you should not have charged ammo until working this out. There are a bunch of methods used to find max length, and you can search them here for sure. With your new finished barrel you should 1st make an uncharged dummy round at max length for every different bullet you intend to use. You measure this with your chosen tool for CBTO and log the info as a reference. Commit to using the same measuring tools/methods forevermore, because this is YOUR standard(better than any other). Now when you want bullets ~10thou off lands for example, maybe because your barrel shoots best there, you just make your ammo 10thou shorter -as measured your way. Important is that you can repeat it for every round you make. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
6.5-284 coal question
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