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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="KsKevin" data-source="post: 3070995" data-attributes="member: 116689"><p>I've used both the 'Alex Wheeler' method (remove firing pin & ejector plunger) and the Erik Cortina method (hard jam with lighter neck tension) and while there is always a delta in the two methods, I have found both to provide consistent & repeatable results (when compared via doing multiple times 5x). The hard jam is usually 0.010 - 0.015" deeper as the bullet engraves into the rifling a bit. Now I've just moved to the hard jam method as it is simpler since you don't have to do the bolt disassembly. In the end, for me, it is just establishing a reference point as I begin seating depth testing during load development and for future assessments of throat erosion.</p></blockquote><p></p>
[QUOTE="KsKevin, post: 3070995, member: 116689"] I’ve used both the ‘Alex Wheeler’ method (remove firing pin & ejector plunger) and the Erik Cortina method (hard jam with lighter neck tension) and while there is always a delta in the two methods, I have found both to provide consistent & repeatable results (when compared via doing multiple times 5x). The hard jam is usually 0.010 - 0.015” deeper as the bullet engraves into the rifling a bit. Now I’ve just moved to the hard jam method as it is simpler since you don’t have to do the bolt disassembly. In the end, for me, it is just establishing a reference point as I begin seating depth testing during load development and for future assessments of throat erosion. [/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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