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Rifles, Reloading, Optics, Equipment
Reloading
C.O.L. A.O.L. B.T.O. ??
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<blockquote data-quote="maggragg" data-source="post: 130722" data-attributes="member: 6885"><p>Hello</p><p></p><p>I´m quiet new to reloading and there are some thing that are confusing me.</p><p></p><p>When I want to measure loaded cartridge I thougt that the best way it to measure from the base of the cartridge to the ogive of the bullet to get the most uniformity for each cartridge. Is that not the B.T.O. lengt?</p><p></p><p>And as I understand, then O.A.L or the over all length is from the base of the cartridge to the tip of the bullet?</p><p></p><p>What is then C.O.L.?</p><p></p><p>Seating depth is then what, wich measurement, the B.T.O?</p><p></p><p>Chamber length is the length from the action to the lands?</p><p></p><p>These things are confusing me a little. To find the freebore I have to find the max lengt of the loaded cartridge that will allow me to close the bolt and measure the cartridge then, That lengt is then the lengt that gives me freebore zero?</p><p></p><p>And what is then the Headspace exactly and how do I measure it?</p><p></p><p>And also the shoulder diameter and the base diameter?</p><p>And what is Leade?</p><p></p><p>What tools should I have to measure all these sizes.</p><p></p><p>I have a S-T industries digital Caliber</p><p></p><p>Hope somone can give mi some help with this /ubbthreads/images/graemlins/crazy.gif</p></blockquote><p></p>
[QUOTE="maggragg, post: 130722, member: 6885"] Hello I´m quiet new to reloading and there are some thing that are confusing me. When I want to measure loaded cartridge I thougt that the best way it to measure from the base of the cartridge to the ogive of the bullet to get the most uniformity for each cartridge. Is that not the B.T.O. lengt? And as I understand, then O.A.L or the over all length is from the base of the cartridge to the tip of the bullet? What is then C.O.L.? Seating depth is then what, wich measurement, the B.T.O? Chamber length is the length from the action to the lands? These things are confusing me a little. To find the freebore I have to find the max lengt of the loaded cartridge that will allow me to close the bolt and measure the cartridge then, That lengt is then the lengt that gives me freebore zero? And what is then the Headspace exactly and how do I measure it? And also the shoulder diameter and the base diameter? And what is Leade? What tools should I have to measure all these sizes. I have a S-T industries digital Caliber Hope somone can give mi some help with this [img]/ubbthreads/images/graemlins/crazy.gif[/img] [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
C.O.L. A.O.L. B.T.O. ??
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