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Rifles, Reloading, Optics, Equipment
Reloading
Measuring CBTO - What is wrong with my approach?
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<blockquote data-quote="Mark37082" data-source="post: 2382397" data-attributes="member: 120066"><p>So I may be missing something or maybe I am too cheap and lazy to buy another tool, but I am sacrificing one piece of brass for each of my rifles in order to measure CBTO. I use a Dremel to cut two slots in the neck of the brass and can easily adjust the tension on the bullets. Simply place the bullet in the brass with a shallow seat and carefully load into the action. I close the bolt and even more carefully remove the cartridge. Measure the CBTO with a Hornady Lock N Load bullets comparator several times after repeating the preceding steps to come up with a consistent measurement to the lands. I then seat that particular bullet .002 shorter than the distance measured to the lands.</p><p>When I am reaching the point of load development where I want to tweak the bullet seating depth, I just increase the jump .005 at a time and shoot a 3 shot group to determine optimum seating depth.</p><p>Thoughts/Suggestions?</p></blockquote><p></p>
[QUOTE="Mark37082, post: 2382397, member: 120066"] So I may be missing something or maybe I am too cheap and lazy to buy another tool, but I am sacrificing one piece of brass for each of my rifles in order to measure CBTO. I use a Dremel to cut two slots in the neck of the brass and can easily adjust the tension on the bullets. Simply place the bullet in the brass with a shallow seat and carefully load into the action. I close the bolt and even more carefully remove the cartridge. Measure the CBTO with a Hornady Lock N Load bullets comparator several times after repeating the preceding steps to come up with a consistent measurement to the lands. I then seat that particular bullet .002 shorter than the distance measured to the lands. When I am reaching the point of load development where I want to tweak the bullet seating depth, I just increase the jump .005 at a time and shoot a 3 shot group to determine optimum seating depth. Thoughts/Suggestions? [/QUOTE]
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Measuring CBTO - What is wrong with my approach?
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