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Rifles, Reloading, Optics, Equipment
Reloading
Determining Precision COALs
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<blockquote data-quote="misterc01" data-source="post: 2197263" data-attributes="member: 109160"><p>What cdherman said. If you send two once-fired brass cases to Hornady and they will drill and tap for $15.00. Then use the Hornady OAL case gauge to find your BSD. I usually run at least 10 measurements to get a solid average (plus I also use both Hornady and Sinclair inserts to have a check and balance - yeah - extra work, but it works for me.) and that is my starting point. I personally don't want to strip out my bolt to use the Wheeler method. The stick and tape/marker method will work, I just like the Hornady system. I have used this approach for four different calibers, and from there vary the seating depth and then load up five rounds at each different depth and head to the range to "zero" it in. Optimum seating depth can a lot farther from the lands than you might think depending on the particular bullet. You might also check you bullet manufacturer's site to see if they have any specific guidance, especially if you are easing Berger's. And, IMHO, you should use a micrometer seating die as well.</p></blockquote><p></p>
[QUOTE="misterc01, post: 2197263, member: 109160"] What cdherman said. If you send two once-fired brass cases to Hornady and they will drill and tap for $15.00. Then use the Hornady OAL case gauge to find your BSD. I usually run at least 10 measurements to get a solid average (plus I also use both Hornady and Sinclair inserts to have a check and balance - yeah - extra work, but it works for me.) and that is my starting point. I personally don't want to strip out my bolt to use the Wheeler method. The stick and tape/marker method will work, I just like the Hornady system. I have used this approach for four different calibers, and from there vary the seating depth and then load up five rounds at each different depth and head to the range to "zero" it in. Optimum seating depth can a lot farther from the lands than you might think depending on the particular bullet. You might also check you bullet manufacturer’s site to see if they have any specific guidance, especially if you are easing Berger’s. And, IMHO, you should use a micrometer seating die as well. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Determining Precision COALs
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