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Rifles, Reloading, Optics, Equipment
Reloading
Why can't i reload exact cartridges?
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<blockquote data-quote="joseph gallagher" data-source="post: 1574324" data-attributes="member: 109133"><p>All bullet dimensons are different, lot to lot and within lot. Even match grade bullets. For a variety of reasons. And variances in presses. All effect consistancy.</p><p>During a discussion with " doc beech" applied balistics, i questioned because of inconsistencies in bullet dimensions what was nore important a consistant amount of bullet in the case or a consistant measurement base to ogive.</p><p></p><p>Doc beech stated " having a consistant jump was more important that how much bullet was in the case.</p><p></p><p>Another thing the Hornady lnl tools are aluminum and wear.</p><p></p><p>This is my procedure, i use a redding competition seater, and a redding comparator. I have a dummy cartridge seated to reloading guide seating depth. I use this dummy round to zero the michrometer on the comparator. If i am seating .015 longer i just seat to indicator reading .015 greater than my set zero.</p><p></p><p>I back out the comp seating die .030 and seat then measure on comparator i do this 3x bringing the comp seating die down and remeasuring.</p><p></p><p>Following this i can get +- .001 base to ogive on like 40, 60 og 100 whatever i am loading.</p><p></p><p>Cant even depend on the micrometer thimble on the comp seating die bding 100% accurate</p><p></p><p>My 2 cents. What works for me. Extra work but it pays off</p></blockquote><p></p>
[QUOTE="joseph gallagher, post: 1574324, member: 109133"] All bullet dimensons are different, lot to lot and within lot. Even match grade bullets. For a variety of reasons. And variances in presses. All effect consistancy. During a discussion with " doc beech" applied balistics, i questioned because of inconsistencies in bullet dimensions what was nore important a consistant amount of bullet in the case or a consistant measurement base to ogive. Doc beech stated " having a consistant jump was more important that how much bullet was in the case. Another thing the Hornady lnl tools are aluminum and wear. This is my procedure, i use a redding competition seater, and a redding comparator. I have a dummy cartridge seated to reloading guide seating depth. I use this dummy round to zero the michrometer on the comparator. If i am seating .015 longer i just seat to indicator reading .015 greater than my set zero. I back out the comp seating die .030 and seat then measure on comparator i do this 3x bringing the comp seating die down and remeasuring. Following this i can get +- .001 base to ogive on like 40, 60 og 100 whatever i am loading. Cant even depend on the micrometer thimble on the comp seating die bding 100% accurate My 2 cents. What works for me. Extra work but it pays off [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Why can't i reload exact cartridges?
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